Mobile All-in-One Solar ESS 3.6kW-12kW with 7.68kWh-32kWh LiFePO4 Battery Storage
Reliable mobile All-in-One ESS solution for residential energy storage.
• Available in 3.6kW+ 7.68kWh，6kW+10kWh，6kW+16kWh，12kW+32kWh
• Grade A LiFePO4 battery cells
• IP21 protection rating
• 10000+ cycle life
• Easy installation and maintenance
• OEM & ODM support available
Quick Specs
| Model | Battery Cap. | Inverter Power | System Voltage | IP Grade | SKU |
|---|---|---|---|---|---|
| 3.6kW+7.68kWh | 7.68kWh | 3.6kW | 25.6V | IP21 | A003P007 |
| 6kW+10kWh | 10.24kWh | 6kW | 51.2V | IP21 | A006P010 |
| 6kW+16kWh | 16.14kWh | 6kW | 51.2V | IP21 | A006P016 |
| 12kW+32kWh | 32.28kWh | 12kW | 51.2V | IP21 | A012P032 |
Tailored to Your Needs: Contact our engineering team for a Free System Design, capacity recommendations, and an official quote.
Low MOQ: 1 set minimum order — perfect for home evaluation or sample testing.
About Manufacturer
Haven Deer is a professional OEM/ODM manufacturer of solar energy storage systems.Our engineering team focuses on residential and commercial energy storage solutions using Grade A LiFePO4 battery technology.Products are manufactured in cooperation with an experienced battery production facility with more than 10 years of industry experience.
Payment,Global Shipping,Warranty & Returns
Payment
Payment
SWIFT(T/T) / HK CHATS
Currencies
AUD, CAD,CHF, CNY, DKK, EUR, GBP, HKD, JPY, NOK, NZD, SGD, USD
Payment terms
T/T30% deposit paid against your P.O.，70% paid against invoice be issued after pre-shipment inspection.
Global Shipping: Any Incoterm Welcome
To ensure a smooth and compliant delivery of your solar and energy storage systems, we support 100% of international trade terms (including EXW, FOB, CIF, DAP, DDP, and more). Whether you want to manage your own logistics or prefer us to handle everything—including customs clearance and duties—we’ve got you covered.
Our Guarantee: Warranty & Returns
What You Need to Know Before Buying:
5-Year Coverage
Fully backed by our 5-year hardware warranty.
Hassle-Free Support
Technical claims are verified remotely by our engineering team to provide genuine replacement parts quickly.
Return Terms
All commercial sales are final. Returns are accepted only for verified Dead-on-Arrival (DOA) claims reported within 14 days of delivery, managed via our professional RMA process in compliance with UN-certified transport regulations.
Exclusions
Labor costs for installation/removal, international return freight, and custom-made orders are not covered.
We highly value your infrastructure investment. Please review our full terms prior to finalizing your order.
Certified Safety & Global Compliance
Certified Safety & Global Compliance
Our home energy systems are fully CE and RoHS certified, meeting the highest safety standards for residential installation, and fully compliant with UN38.3 & MSDS
for seamless global shipping.
Product Overview
Movable Energy Storage Solution
4 Mobile ESS Models for Home Backup
Choose from 4 versatile models (3.6kW to 12kW) with LiFePO4 battery storage. This indoor plug-and-play system requires zero complex installation and zero labor costs. Just rollable power.
Plug-and-Play Smart Control Center
Features easy-access power switches, USB ports, and CAN/RS485/RS232 protocols for seamless smart BMS integration with local solar grids. Versatile, safe, and hassle-free power.
Smart LCD Touchscreen Power Monitor
Our flagship 12kW/32kWh mobile ESS features an intuitive LCD screen. Track solar input, battery capacity, and home loads in real time to optimize your clean energy usage easily.
Industrial Wheels for Easy Mobility
Heavy capacity meets ultimate mobility. Built with industrial 360° swivel wheels, this robust all-in-one ESS rolls effortlessly across floors or garages. No lifting required.
Technical Specifications
3.6kW+7.68kWh
| Item | Specification |
|---|---|
| Inverter Parameters | |
| Power | 3.6kVA/3.6kW |
| Maximum photovoltaic input power | 5kW |
| Two AC outputs | Yes |
| Universal AC output power | 3.6kVA/3.6kW |
| AC output power of wiring harness | 3.6kVA/3.6kW |
| Maximum AC total output power | 3.6kVA / 3.6kW |
| Parallel machine function | No |
| Lithium-ion communication | No |
| Lithium battery activation | Yes (photovoltaic or mains) |
| Input | |
| Rated voltage | 230VAC |
| Voltage range | 170-280VAC (computer application); 90-280VAC (household appliances) |
| Frequency | 50 / 60 Hz (automatic detection) |
| Output | |
| Rated voltage | 220/230VAC±5% |
| Instantaneous power | 5400VA |
| Frequency | 50/60 Hz |
| Output waveform | Pure sine wave |
| Switching time | 10ms (computer application); 20ms (household appliances) |
| Peak efficiency (PV to INV) | 96% |
| Peak power (Battery to INV) | 93% |
| Overpower protection | 5s@＞=140% load; 10s@100%~140% load |
| Peak coefficient | 3:1 |
| Power factor | 0.6~1 (capacitive or inductive) |
| Grid connection mode | Parallel |
| PV Charging & AC Charging | |
| Charge mode | MPPT |
| Maximum photovoltaic input power | 5kW |
| Maximum photovoltaic open circuit voltage | 500VDC |
| MPPT voltage range | 40VDC~450VDC |
| Maximum photovoltaic input current | 18A |
| Maximum photovoltaic charging current | 100A |
| Maximum mains charging current | 100A |
| Maximum charging current | 100A |
| Battery Parameters | |
| Nominal Capacity | 300AH (0.5C charging, 1C discharging, 25 ℃) |
| Rated Voltage | 25.6V (8S) |
| Discharge Cut-off Voltage | 22V |
| Charging Cut-off Voltage | 26.6V |
| Float charging voltage | 27V |
| Continuous charging maximum current | 100A |
| Maximum current for continuous discharge | 150A |
| Battery Energy | 7.68kWh |
| Rated Output Power | 3.6kW |
| Communication Interface | No |
| Discharge working temperature | -15℃~50℃ |
| Charging working temperature | 0℃~50℃ |
| Relative Humidity | 5～90% |
| Altitude | ≤4000m |
| Protection Grade | IP21 |
| Storage Time | Keep charging at least once every 3 months |
| Number of cycles | ≥6000 times ,DOD≥90%;10000 times,DOD≥80%(75% DOD 25℃) |
| Main Parameters For BMS | |
| Overcharge Protection(Overcharge detection voltage) | Monomer 3.65 ± 0.05V |
| Overcharge Protection(Overcharge protection delay) | 0.5S |
| Over Discharge Protection(Overdischarge detection voltage) | Monomer 2.7 ± 0.05V |
| Over Discharge Protection(Overdischarge detection delay) | 0.5S |
| Overcurrent Protection (Greater than rated current) | 1.1% |
| Overcurrent Recovery | Disconnect Load |
| Self Consumption Power (Working Current) | ≤10mA |
| Self Consumption Power (Sleep Current) | ≤50uA |
| Physical Property | |
| Product Size, length x width x height (mm) | 740*400*240 |
| Package Size, length x width x height (mm) | 765*465*400 |
| Net Weight (kg) | 65.75 |
| Gross Weight (kg) | 77.75 |
| LCD | Yes |
| Application Environment | |
| Operating temperature range | -10°C to 55°C |
| Storage temperature range | -15°C~ 60°C |
| Humidity | 5% to 95% relative humidity (no frost) |
6kW+10kWh
| Item | Specification |
|---|---|
| Inverter Parameters | |
| Power | 6kVA/6kW |
| Maximum photovoltaic input power | 9kW |
| Two AC outputs | Yes |
| Universal AC output power | 2kVA/2kW *3 |
| AC output power of wiring harness | 6kVA/6kW |
| Maximum AC total output power | 6kVA / 6kW |
| Parallel machine function | NO |
| Lithium-ion communication | RS232/RS485/Dry Contact |
| Lithium battery activation | Yes (photovoltaic or mains) |
| Input | |
| Rated voltage | 230VAC |
| Voltage range | 170-280VAC (computer application); 90-280VAC (household appliances) |
| Frequency | 50 / 60 Hz (automatic detection) |
| Output | |
| Rated voltage | 220/240VAC±5% |
| Instantaneous power | 9000VA |
| Frequency | 50/60 Hz |
| Output waveform | Pure sine wave |
| Switching time | 10ms (computer application); 20ms (household appliances) |
| Peak efficiency (PV to INV) | 96% |
| Peak power (Battery to INV) | 93% |
| Overpower protection | 5s@＞=140% load; 10s@100%~140% load |
| Peak coefficient | 3:1 |
| Power factor | 0.6~1 (capacitive or inductive) |
| Grid connection mode | Not support |
| PV Charging & AC Charging | |
| Charge mode | MPPT |
| Maximum photovoltaic input power | 9kW |
| Maximum photovoltaic open circuit voltage | 500VDC |
| MPPT voltage range | 60VDC~450VDC |
| Maximum photovoltaic input current | 27A |
| Maximum photovoltaic charging current | 120A |
| Maximum mains charging current | 120A |
| Maximum charging current | 120A |
| Battery Parameters | |
| Nominal Capacity | 200AH (0.3C charging, 1C discharging, 25 ℃) |
| Rated Voltage | 51.2V (16S) |
| Discharge Cut-off Voltage | 44V |
| Charging Cut-off Voltage | 56.4V |
| Float charging voltage | 56V |
| Continuous charging maximum current | 160A (Can Set) |
| Maximum current for continuous discharge | 150A |
| Battery Energy | 10kWh |
| Rated Output Power | 6kW |
| Communication Interface | RS232/RS485/Dry Contact |
| Discharge working temperature | -15℃~50℃ |
| Charging working temperature | 0℃~50℃ |
| Relative Humidity | 5～90% |
| Altitude | ≤4000m |
| Protection Grade | IP21 |
| Storage Time | Keep charging at least once every 3 months |
| Number of cycles | ≥8000 times (75% DOD 25℃) |
| Main Parameters For BMS | |
| Overcharge Protection(Overcharge detection voltage) | Monomer 3.65 ± 0.05V |
| Overcharge Protection(Overcharge protection delay) | 0.5S |
| Over Discharge Protection(Overdischarge detection voltage) | Monomer 2.7 ± 0.05V |
| Over Discharge Protection(Overdischarge detection delay) | 0.5S |
| Overcurrent Protection (Greater than rated current) | 1.1% |
| Overcurrent Recovery | Disconnect Load |
| Self Consumption Power (Working Current) | ≤10mA |
| Self Consumption Power (Sleep Current) | ≤50uA |
| Physical Property | |
| Product Size, length x width x height (mm) | 1040*460*240 |
| Package Size, length x width x height (mm) | 1060*480*260 |
| Net Weight (kg) | 99.8 |
| Gross Weight (kg) | 120.6 |
| LCD | Yes |
| Application Environment | |
| Operating temperature range | -10°C to 55°C |
| Storage temperature range | -15°C~ 60°C |
| Humidity | 5% to 95% relative humidity (no frost) |
6kW+16kWh
| Item | Specification |
|---|---|
| Inverter Parameters | |
| Power | 6kVA/6kW |
| Maximum photovoltaic input power | 9kW |
| Two AC outputs | Yes |
| Universal AC output power | 6kVA/6kW |
| AC output power of wiring harness | 6kVA/6kW |
| Maximum AC total output power | 6kVA / 6kW |
| Parallel machine function | NO |
| Lithium-ion communication | RS232/RS485/Dry Contact |
| Lithium battery activation | Yes (photovoltaic or mains) |
| Input | |
| Rated voltage | 230VAC |
| Voltage range | 170-280VAC (computer application); 90-280VAC (household appliances) |
| Frequency | 50 / 60 Hz (automatic detection) |
| Output | |
| Rated voltage | 220/240VAC±5% |
| Instantaneous power | 9000VA |
| Frequency | 50/60 Hz |
| Output waveform | Pure sine wave |
| Switching time | 10ms (computer application); 20ms (household appliances) |
| Peak efficiency (PV to INV) | 96% |
| Peak power (Battery to INV) | 93% |
| Overpower protection | 5s@＞=140% load; 10s@100%~140% load |
| Peak coefficient | 3:1 |
| Power factor | 0.6~1 (capacitive or inductive) |
| Grid connection mode | Not support |
| PV Charging & AC Charging | |
| Charge mode | MPPT |
| Maximum photovoltaic input power | 9kW |
| Maximum photovoltaic open circuit voltage | 500VDC |
| MPPT voltage range | 60VDC~450VDC |
| Maximum photovoltaic input current | 27A |
| Maximum photovoltaic charging current | 120A |
| Maximum mains charging current | 120A |
| Maximum charging current | 120A |
| Battery Parameters | |
| Nominal Capacity | 314AH (0.3C charging, 1C discharging, 25 ℃) |
| Rated Voltage | 51.2V (16S) |
| Discharge Cut-off Voltage | 44V |
| Charging Cut-off Voltage | 56.4V |
| Float charging voltage | 56V |
| Continuous charging maximum current | 160A (Can Set) |
| Maximum current for continuous discharge | 150A |
| Battery Energy | 16kWh |
| Rated Output Power | 6kW |
| Communication Interface | RS232/RS485/Dry Contact |
| Discharge working temperature | -15℃~50℃ |
| Charging working temperature | 0℃~50℃ |
| Relative Humidity | 5～90% |
| Altitude | ≤4000m |
| Protection Grade | IP21 |
| Storage Time | Keep charging at least once every 3 months |
| Number of cycles | 6000 times,DOD≥90%;10000 times,DOD≥80% (75% DOD 25℃) |
| Main Parameters For BMS | |
| Overcharge Protection(Overcharge detection voltage) | Monomer 3.65 ± 0.05V |
| Overcharge Protection(Overcharge protection delay) | 0.5S |
| Over Discharge Protection(Overdischarge detection voltage) | Monomer 2.7 ± 0.05V |
| Over Discharge Protection(Overdischarge detection delay) | 0.5S |
| Overcurrent Protection (Greater than rated current) | 1.1% |
| Overcurrent Recovery | Disconnect Load |
| Self Consumption Power (Working Current) | ≤10mA |
| Self Consumption Power (Sleep Current) | ≤50uA |
| Physical Property | |
| Product Size, length x width x height (mm) | 1050*460*240 |
| Package Size, length x width x height (mm) | 1085*520*300 |
| Net Weight (kg) | 122 |
| Gross Weight (kg) | 124 |
| LCD | Yes |
| Application Environment | |
| Operating temperature range | -10°C to 55°C |
| Storage temperature range | -15°C~ 60°C |
| Humidity | 5% to 95% relative humidity (no frost) |
12kW+32kWh
| Item | Specification |
|---|---|
| Inverter Parameters | |
| Power | 12kVA/12kW |
| Maximum photovoltaic input power | Single circuit 9kW;Dual Circuit 15kW |
| Two AC outputs | Yes |
| Universal AC output power | 3kVA/3kW +3kVA/3kW |
| AC output power of wiring harness | 12kVA/12kW |
| Maximum AC total output power | 12kVA / 12kW |
| Parallel machine function | NO |
| Lithium-ion communication | RS232/RS485/Dry Contact |
| Lithium battery activation | Yes (photovoltaic or mains) |
| Input | |
| Rated voltage | 230VAC |
| Voltage range | 170-280VAC (computer application); 90-280VAC (household appliances) |
| Frequency | 50 / 60 Hz (automatic detection) |
| Output | |
| Rated voltage | 220/240VAC±5% |
| Instantaneous power | 18000VA |
| Frequency | 50/60 Hz |
| Output waveform | Pure sine wave |
| Switching time | 10ms (computer application); 20ms (household appliances) |
| Peak efficiency (PV to INV) | 96% |
| Peak power (Battery to INV) | 93% |
| Overpower protection | 5s@＞=140% load; 10s@100%~140% load |
| Peak coefficient | 3:1 |
| Power factor | 0.6~1 (capacitive or inductive) |
| Grid connection mode | Not support |
| PV Charging & AC Charging | |
| Charge mode | MPPT |
| Maximum photovoltaic input power | 7.5kW+7.5kW |
| Maximum photovoltaic open circuit voltage | 500VDC |
| MPPT voltage range | 120VDC~450VDC |
| Maximum photovoltaic input current | 22.5A+22.5A |
| Maximum photovoltaic charging current | 160A |
| Maximum mains charging current | 120A |
| Maximum charging current | 160A |
| Battery Parameters | |
| Nominal Capacity | 628AH (0.3C charging, 1C discharging, 25 ℃) |
| Rated Voltage | 51.2V (16S) |
| Discharge Cut-off Voltage | 44V |
| Charging Cut-off Voltage | 56.4V |
| Float charging voltage | 56V |
| Continuous charging maximum current | 160A (Can Set) |
| Maximum current for continuous discharge | 200A |
| Battery Energy | 32kWh |
| Rated Output Power | 12kW |
| Communication Interface | RS232/RS485/Dry Contact |
| Discharge working temperature | -15℃~50℃ |
| Charging working temperature | 0℃~50℃ |
| Relative Humidity | 5～90% |
| Altitude | ≤4000m |
| Protection Grade | IP21 |
| Storage Time | Keep charging at least once every 3 months |
| Number of cycles | 6000 times,DOD>=90%;10000 times,DOD>=80% (75% DOD 25℃) |
| Main Parameters For BMS | |
| Overcharge Protection(Overcharge detection voltage) | Monomer 3.65 ± 0.05V |
| Overcharge Protection(Overcharge protection delay) | 0.5S |
| Over Discharge Protection(Overdischarge detection voltage) | Monomer 2.7 ± 0.05V |
| Over Discharge Protection(Overdischarge detection delay) | 0.5S |
| Overcurrent Protection (Greater than rated current) | 1.1% |
| Overcurrent Recovery | Disconnect Load |
| Self Consumption Power (Working Current) | ≤10mA |
| Self Consumption Power (Sleep Current) | ≤50uA |
| Physical Property | |
| Product Size, length x width x height (mm) | 760*450*760 |
| Package Size, length x width x height (mm) | 780*470*780 |
| Net Weight (kg) | 238 |
| Gross Weight (kg) | 258 |
| LCD | Yes |
| Application Environment | |
| Operating temperature range | -10°C to 55°C |
| Storage temperature range | -15°C~ 60°C |
| Humidity | 5% to 95% relative humidity (no frost) |
Key Features
Superior battery performance, intelligent management system, and all-in-one integrated design.
Premium Grade A LiFePO4 Cells
Grade A LiFePO4 cells, 3000W laser welding for max conductivity, thermal stability & extended cycle life.
Ultra-Long 10,000+ Cycle Life
Exceeds industry standards with 10,000+ cycles life. 80% DoD, 0.5C/0.5C at 25°C, delivering 80% SOH at EOL.
Nano-Coating & Self-Healing LFP Tech
Nano-coating & self-healing LFP crystal technology enhances safety and reduces maintenance throughout battery lifespan.
Advanced AGM + PP Protective Design
Heavy-duty AGM separators and robust PP casing isolate cells, preventing leaks and resisting heavy impacts or vibrations.
Built-in Smart MPPT Technology
Integrated maximum power point tracking auto-optimizes solar panels’ input, boosting charging efficiency by up to 30%.
Built-in BMS Protection System
Built-in BMS covers OTP/UTP, OVP/ODP, OCP/OLP, short-circuit & full battery protection for safe operation.
Compact All-in-One Design
Integrated battery, inverter, and MPPT controller simplify installation and save space.
Priority Mode at Your Fingertips
Choose solar, grid, or battery as your primary power source via the intuitive control panel or remote app—flexible energy management for any demand.
Why Choose Us
Reliable OEM & ODM Solar Energy Storage Solutions for Global Partners
Full OEM & ODM Customization Support
Tailor capacity, logos, or parameters. We provide robust OEM/ODM production lines to scale your local solar brand fast.
Strict Quality Control Standards
Every mobile ESS undergoes comprehensive aging tests and multi-stage inspections, ensuring 100% reliable performance.
Responsive Global Technical Support
Never worry about after-sales. Our dedicated engineering team provides fast, professional troubleshooting and guidance.
Fast Global Delivery
7-day production lead time with efficient global logistics and worldwide shipment to US & EU.
Applications
Designed for Residential, Commercial & Off-Grid Applications
Reliable Home Backup Power Source
Instantly runs heavy appliances like ACs and refrigerators, keeping your family safe and comfortable during blackouts.
Ultimate Autonomy for Off-Grid Living
Enjoy complete freedom away from the traditional power grid. Generate, store, and manage your own clean green energy.
Heavy-Duty RV Power Solutions
Ditch noisy gas generators. The rugged, rollable design easily powers high-wattage appliances inside your camper or trailer.
Critical Small Business Backup
Protect office servers, desktop computers, and medical equipment from sudden voltage drops, ensuring zero data loss.
Disaster & Emergency Preparedness
A robust defensive energy asset for your family, ready to roll during extreme weather, hurricanes, or grid failure.
Maximize Solar Energy Utilization
Store excess free daytime solar energy to power your home through the night. Slash grid reliance and utility bills.
FAQ: Engineering & Wholesale Queries
What are the actual installation advantages of your mobile all-in-one system compared to traditional wall-mounted or rack-mounted ESS?
For installers and system integrators, the key difference is installation cost and time.
Traditional wall-mounted or rack-mounted ESS typically requires:
Wall reinforcement or standard server rack installation
Separate mounting and wiring for inverter, battery, BMS, and MPPT
Average installation time: 4–8 hours (two-person team)
Haven Deer mobile all-in-one system:
Zero wall modification — industrial-grade 360° swivel wheels allow placement on any flat floor
Pre-wired integration — battery, inverter, and MPPT are internally connected at the factory
Typical installation time: 1–2 hours (including electrical connections and system configuration)
Ideal for rental or temporary applications — simply roll it away when relocation is needed
For wholesalers, this translates to lower after-sales service costs and higher end-user satisfaction.
What capacity configurations do you offer, and how should I size the system for my clients?
We offer four standardized configurations, covering everything from apartments to large homes:
| Model | Battery Cap. | Inverter Power | Best For |
|---|---|---|---|
| 3.6kW+7.68kWh | 7.68kWh | 3.6kW | Small apartments, temporary offices, RVs |
| 6kW+10kWh | 10.24kWh | 6kW | Medium-sized homes, critical load backup |
| 6kW+16kWh | 16.14kWh | 6kW | 3-bedroom homes, full overnight backup |
| 12kW+32kWh | 32.28kWh | 12kW | Large homes, small commercial, off-grid systems |
Sizing guidelines:
- Home backup: estimate 3–5kWh per bedroom
- Commercial: calculate based on actual load power × backup duration
- For custom configurations or OEM specs, we offer free system design consultation
Do you support OEM/ODM customization? What is the minimum order quantity (MOQ)?
Yes. Haven Deer has full OEM/ODM capabilities:
- Cosmetic customization: brand logo, panel color, product nameplate
- Parameter customization: battery capacity, inverter power, communication protocols (CAN/RS485/RS232)
- Packaging customization: retail or wholesale packaging tailored to your local market
Minimum Order Quantity (MOQ):
- Sample order: 1 unit (ideal for market testing or project validation)
- OEM bulk orders: please contact our sales team for specific MOQ and lead times
All custom products undergo our 72-hour aging test and multi-stage quality inspection before shipment.
Under what conditions are your "10,000+ cycle life" claims tested? Can this be achieved in real-world projects?
This is an excellent question. Our 10,000-cycle data is measured under standard laboratory conditions:
- Temperature: 25℃ ± 2℃
- Charge/discharge rate: 0.5C / 0.5C
- Depth of Discharge (DOD): 80%
- End of Life (EOL) standard: capacity degraded to 80% of initial value
Real-world expectations:
- Under typical one-cycle-per-day home storage scenarios, the design life is 15–20 years
- Under extreme temperatures (below 0℃ or above 40℃) or deep discharge (100% DOD), cycle life will be reduced accordingly
- We recommend installers reserve a 20–30% capacity margin for clients to optimize the balance between cycle life and cost
If you have specific operating conditions (temperature, charge/discharge patterns, daily cycles), we can provide customized life-cycle simulation reports.
Are the "Self-Healing LFP Crystal Technology" and "Nano-Coating" real? How do they work?
The “self-healing” and “nano-coating” concepts mentioned in our product page are based on our material-level innovations. Here’s a clear explanation:
Nano-Coating: This refers to a nanoscale conductive carbon layer applied to the surface of LFP cathode particles. This is a mature technology already adopted by industry leaders like CATL and BYD. It:
- Improves electronic conductivity
- Suppresses side reactions between electrolyte and electrodes
- Stabilizes the SEI (Solid-Electrolyte Interphase) layer, extending cycle life
Self-Healing LFP Crystal Technology: The more accurate engineering term is crystal lattice stability enhancement. Through elemental doping (e.g., magnesium or manganese ions) in the LFP crystal structure, we suppress the initiation and propagation of micro-cracks during repeated charge/discharge volume expansion and contraction. We use the term “self-healing” in simpler language to help non-technical customers understand the benefit.
Bottom line: Both technologies are genuinely implemented in our products — they are not false claims. However, their actual effect is extending cycle life and improving safety, not physically “repairing” already-damaged materials like a true self-healing polymer.
What protection features does your BMS (Battery Management System) include?
Our built-in BMS provides 7 layers of safety protection:
| Protection Type | Trigger Condition | Response |
|---|---|---|
| Overcharge (OVP) | Cell voltage ≥ 3.65V ± 0.05V | Cut off charging within 0.5s |
| Over-discharge (ODP) | Cell voltage ≤ 2.7V ± 0.05V | Cut off discharging within 0.5s |
| Overcurrent (OCP) | Current ≥ 110% of rated value | Immediately disconnect load |
| Short Circuit (SCP) | Short circuit detected | Instant disconnection |
| Overtemperature (OTP) | Cell temperature ≥ 55℃ | Current limiting / cut off |
| Undertemperature (UTP) | Cell temperature ≤ -15℃ (discharge) / 0℃ (charge) | Charge disabled / discharge limited |
| Cell Balancing | Voltage differential between cells | Passive balancing |
Additionally, our BMS supports CAN/RS485 communication protocols with major inverter brands for seamless third-party system integration.
What is your standard lead time? How do you ensure safe international shipping?
Our standard production lead times:
| Order Type | Lead Time |
|---|---|
| Standard models, sample (1–5 units) | 7 working days |
| Standard models, bulk (up to 50 units) | 15–20 working days |
| OEM/ODM custom orders | 25–35 working days (including design validation) |
International shipping safety:
- All battery products are certified with UN38.3 for air and sea transport
- MSDS (Material Safety Data Sheet) provided
- Export-grade wooden crate packaging with shock-absorbing foam
- Supports all Incoterms: EXW, FOB, CIF, DAP, DDP
- Major destination ports: USA (Los Angeles, New York), Europe (Hamburg, Rotterdam, Antwerp), Australia (Sydney)
What payment methods do you accept? What are your payment terms?
Payment methods:
| Method | Details |
|---|---|
| T/T (Wire Transfer) | Primary method; supports USD, EUR, GBP, and multiple currencies |
| HK CHATS | For Hong Kong-based transfers |
| Letter of Credit (L/C) | Negotiable for large-volume orders |
Standard payment terms:
- 30% deposit against Proforma Invoice (PI)
- 70% balance against Commercial Invoice, issued after pre-shipment inspection (PSI)
We support third-party inspection (e.g., SGS, TÜV) to ensure clients can verify quality before final payment.
What is your warranty policy? How do you handle warranty claims?
We provide a 5-year standard hardware warranty, covering:
- Battery pack
- Inverter module
- BMS control board
- MPPT controller
Warranty claim process:
- Customer reports issue → provide fault description, photos/videos, and system logs
- Remote diagnostics → our engineering team responds within 48 hours
- Valid claim confirmed → replacement parts are shipped (no need to return the entire unit — reduces international freight costs)
- On-site replacement → performed by the installer or customer with our detailed video guidance
Exclusions:
- Damage due to improper installation
- Unauthorized disassembly or modification
- Force majeure (lightning, flood, fire, etc.)
- Shipping damage (must claim with carrier)
- International return freight (except for verified DOA cases)
DOA (Dead on Arrival) policy: For DOA cases reported within 14 days of delivery, we cover the replacement shipping costs.
What technical support do you provide for installers and wholesalers?
As a B2B partner, you receive:
Pre-sales technical support:
- Free system design consultation
- Capacity and configuration recommendations
- Technical documentation support for project bidding
After-sales technical support:
- 24/7 online support (WeChat / WhatsApp / Email)
- Remote diagnostics and firmware updates
- Detailed installation manuals and video tutorials
- Technical training (online or factory-based)
Marketing support:
- Product promotional materials (PDF, videos)
- Shared certification documents (CE, RoHS, UN38.3, MSDS)
- Brand authorization (for OEM clients)
What international standards do your storage systems meet? Which countries can you export to?
Our products have obtained the following certifications:
| Certification | Market | Response |
|---|---|---|
| CE | EU | EMC and Low Voltage Directive (LVD) compliance |
| RoHS | EU | Restriction of Hazardous Substances |
| UN38.3 | Global | Lithium battery transport safety |
| MSDS | Global | Material Safety Data Sheet |
| IEC 62619 | International | Safety requirements for industrial lithium batteries (selected models) |
Key export markets:
Europe: Germany, UK, France, Italy, Spain, Netherlands, Poland
North America: USA (all states), Canada
Oceania: Australia, New Zealand
Asia: Japan, South Korea, Southeast Asia
Middle East: UAE, Saudi Arabia
For specific country or regional certifications (e.g., UL 1973, VDE, CEC listed), please inform our sales team — we can adapt based on order volume.
As a wholesaler, why should I choose Haven Deer over other Chinese manufacturers?
This is a critical question. Our core differentiators are:
| Factor | Haven Deer | Typical OEM Factory |
|---|---|---|
| Product Design | Integrated mobile design — extremely simple installation | Usually modular — requires on-site assembly |
| Battery Cells | Explicitly Grade A LiFePO4 | Often uses B-grade or ungraded cells |
| Cycle Life Claims | 10,000 cycles with detailed test conditions | Vague claims, lacks verification |
| Certifications | Full CE, RoHS, UN38.3, MSDS | Partial certifications or only nominal compliance |
| MOQ | 1 unit minimum — ideal for market testing | Usually high MOQ required |
| Payment Terms | Balance paid after pre-shipment inspection | Often 100% paid before shipment |
| Technical Support | Direct engineering team access | Relies on sales or order processors |
| OEM Capability | Full production line and design team | Simple rebranding, no R&D capability |
We are not a trading company — we are a manufacturer with in-house R&D capabilities and a partner battery production facility with over 10 years of industry experience. When your clients encounter technical issues, our engineering team can provide direct answers, not through multiple layers of communication.