BYH 12.8V deep-cycle series
12V LiFePO4 Lead-Acid Replacement Batteries
Four 12.8V LiFePO4 deep-cycle batteries with integrated BMS protection, IP65 ABS enclosures and capacities from 100Ah to 314Ah.
Model range
Select a configuration.
Product overview
Built around the application.
The BYH 12.8V series provides four LiFePO4 deep-cycle configurations for selected lead-acid replacement applications. Each model combines an integrated BMS, M8 terminals and an IP65 ABS enclosure in a model-specific mechanical format.
Compatibility depends on the charging profile, continuous and peak current, wiring, physical fit and operating environment of the host system. Select the exact model before reviewing parameters or requesting application support.
Long-cycle LiFePO4 platform
Rated for more than 5,000 cycles at 0.5C and 100% depth of discharge, with monthly self-discharge below 3%.
Integrated BMS protection
The integrated BMS provides overcharge, over-discharge, temperature and short-circuit protection together with cell balancing.
IP65 ABS enclosure
The IP65 housing supports outdoor, marine and damp operating environments.
High charge and discharge efficiency
Charge efficiency reaches 100% at 0.2C and discharge efficiency reaches 96–99% at 1C.
Wide operating-temperature range
Charging operates from 0°C to 45°C and discharging from -20°C to 60°C.
Series and parallel expansion
The platform supports up to four batteries in series and ten in parallel, subject to compatible system engineering.
Product views
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Additional product views are shown where available for the selected model.
Product parameters
Model-specific specifications.
Compare the model-specific electrical, mechanical and operating parameters. Final configuration remains subject to application engineering.
Electrical characteristics
- Model
- BYH12100
- Battery type
- LiFePO4 lithium battery
- Nominal voltage
- 12.8V
- Nominal capacity
- 100Ah at 0.5C, 25°C
- Rated energy
- 1,280 Wh
- Internal resistance
- ≤150 mΩ
- Cycle life
- >5,000 cycles at 0.5C, 100% DOD
- Monthly self-discharge
- <3%
- Charge efficiency
- 100% at 0.2C
- Discharge efficiency
- 96–99% at 1C
Standard charge
- Charge voltage
- 14.6 ± 0.2V
- Charge mode
- 0.2C to 14.6V, then 14.6V until charge current reaches 0.02C (CC/CV)
- Charge current
- 50A
- Maximum charge current
- 100A
- Charge cut-off voltage
- 14.8 ± 0.2V
Standard discharge
- Continuous current
- 100A
- Maximum pulse current
- 110A (<3 seconds)
- Discharge cut-off voltage
- 10.8V
Environmental
- Charge temperature
- 0°C to 45°C at 25% relative humidity
- Discharge temperature
- -20°C to 60°C at 25% relative humidity
- Storage temperature
- 0°C to 40°C at 25% relative humidity
Mechanical
- Cell configuration
- 3.2V 100Ah · 4S1P
- Enclosure
- ABS
- Dimensions
- 332 × 175 × 220 mm
- Weight
- 10.3 kg
- Terminal
- M8
- Color
- Black
CE · IEC 62619 · UN38.3
Electrical characteristics
- Model
- BYH12150
- Battery type
- LiFePO4 lithium battery
- Nominal voltage
- 12.8V
- Nominal capacity
- 150Ah at 0.5C, 25°C
- Rated energy
- 1,920 Wh
- Internal resistance
- ≤150 mΩ
- Cycle life
- >5,000 cycles at 0.5C, 100% DOD
- Monthly self-discharge
- <3%
- Charge efficiency
- 100% at 0.2C
- Discharge efficiency
- 96–99% at 1C
Standard charge
- Charge voltage
- 14.6 ± 0.2V
- Charge mode
- 0.2C to 14.6V, then 14.6V until charge current reaches 0.02C (CC/CV)
- Charge current
- 50A
- Maximum charge current
- 100A
- Charge cut-off voltage
- 14.8 ± 0.2V
Standard discharge
- Continuous current
- 100A
- Maximum pulse current
- 110A (<3 seconds)
- Discharge cut-off voltage
- 10.8V
Environmental
- Charge temperature
- 0°C to 45°C at 25% relative humidity
- Discharge temperature
- -20°C to 60°C at 25% relative humidity
- Storage temperature
- 0°C to 40°C at 25% relative humidity
Mechanical
- Cell configuration
- 3.2V 150Ah · 4S1P
- Enclosure
- ABS
- Dimensions
- 484 × 175 × 241 mm
- Weight
- 14 kg
- Terminal
- M8
- Color
- Black
CE · IEC 62619 · UN38.3
Electrical characteristics
- Model
- BYH12200
- Battery type
- LiFePO4 lithium battery
- Nominal voltage
- 12.8V
- Nominal capacity
- 205Ah at 0.5C, 25°C
- Rated energy
- 2,624 Wh
- Internal resistance
- ≤150 mΩ
- Cycle life
- >5,000 cycles at 0.5C, 100% DOD
- Monthly self-discharge
- <3%
- Charge efficiency
- 100% at 0.2C
- Discharge efficiency
- 96–99% at 1C
Standard charge
- Charge voltage
- 14.6 ± 0.2V
- Charge mode
- 0.2C to 14.6V, then 14.6V until charge current reaches 0.02C (CC/CV)
- Charge current
- 50A
- Maximum charge current
- 100A
- Charge cut-off voltage
- 14.8 ± 0.2V
Standard discharge
- Continuous current
- 200A
- Maximum pulse current
- 210A (<3 seconds)
- Discharge cut-off voltage
- 10.8V
Environmental
- Charge temperature
- 0°C to 45°C at 25% relative humidity
- Discharge temperature
- -20°C to 60°C at 25% relative humidity
- Storage temperature
- 0°C to 40°C at 25% relative humidity
Mechanical
- Cell configuration
- 3.2V 205Ah · 4S1P
- Enclosure
- ABS
- Dimensions
- 387 × 206 × 273 mm
- Weight
- 21 kg
- Terminal
- M8
- Color
- Black
CE · IEC 62619 · UN38.3
Electrical characteristics
- Model
- BYH12314
- Battery type
- LiFePO4 lithium battery
- Nominal voltage
- 12.8V
- Nominal capacity
- 314Ah at 0.5C, 25°C
- Rated energy
- 4,019 Wh
- Internal resistance
- ≤150 mΩ
- Cycle life
- >5,000 cycles at 0.5C, 100% DOD
- Monthly self-discharge
- <3%
- Charge efficiency
- 100% at 0.2C
- Discharge efficiency
- 96–99% at 1C
Standard charge
- Charge voltage
- 14.6 ± 0.2V
- Charge mode
- 0.2C to 14.6V, then 14.6V until charge current reaches 0.02C (CC/CV)
- Charge current
- 50A
- Maximum charge current
- 100A
- Charge cut-off voltage
- 14.8 ± 0.2V
Standard discharge
- Continuous current
- 200A
- Maximum pulse current
- 210A (<3 seconds)
- Discharge cut-off voltage
- 10.8V
Environmental
- Charge temperature
- 0°C to 45°C at 25% relative humidity
- Discharge temperature
- -20°C to 60°C at 25% relative humidity
- Storage temperature
- 0°C to 40°C at 25% relative humidity
Mechanical
- Cell configuration
- 3.2V 314Ah · 4S1P
- Enclosure
- ABS
- Dimensions
- 387 × 207 × 275 mm
- Weight
- 27 kg
- Terminal
- M8
- Color
- Black
CE · IEC 62619 · UN38.3
Applications
Where this family fits.
Model selection should follow the real load, duty cycle, interface, installation environment and destination-market requirements.
Solar energy storage
12.8V auxiliary storage for compatible solar and off-grid systems.
RV and camper power
Deep-cycle auxiliary power for compatible recreational-vehicle systems.
Marine power supply
Auxiliary power for compatible marine equipment and onboard loads.
Security monitoring
Battery support for compatible CCTV and remote monitoring equipment.
Home backup power
Backup energy for compatible household and small off-grid loads.
Electric golf cart
A 12.8V battery option for compatible golf-cart auxiliary systems.
Engineering scope
Protection built into the platform.
Product features
- Grade A LiFePO4 cell platform
- Integrated BMS protection and cell balancing
- M8 terminal format
- IP65 ABS enclosure
- Up to four batteries in series and ten in parallel
