US stocks 12v 300ah lifepo4 battery with 200a smart bms and bluetooth










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| DIY box | |
| BMS | JBD 4S 200A |
| Battery packs | |
| Cells model | 4S1P 300Ah 3.2V Lifepo4 cells |
| Size | 384*270*204mm |
| Weight | 26Kg |
| Lifepo4 | |
| Voltage range | 10~14.6V |
- Stock: In Stock
- Brand: DOCAN ENERGY
- Model: 12V 300Ah
- Weight: 26.00kg
- Dimensions: 38.40cm x 20.40cm x 27.00cm
Available Options
DOCAN ENERGY DEEP CYCLE BATTERY
12V 300Ah LiFePO4 Battery
3.84kWh of dependable energy with a JBD 200A smart BMS, LCD display and Bluetooth monitoring - engineered for RV, off-grid solar, marine and backup power applications.

High-Capacity 12V Power
More Usable Energy in a Compact Deep Cycle Battery
The 4S1P LiFePO4 battery pack combines a 12.8V nominal voltage with 300Ah rated capacity. Its stable lithium iron phosphate chemistry, high-current BMS and integrated monitoring make it a reliable drop-in upgrade for deep cycle systems.
High Energy Capacity
Approximately 3840Wh of nominal energy supports extended runtime for high-draw inverters and 12V appliances.
JBD Smart BMS
Integrated 4S 200A management provides hardware & software protection for overcharge, overdischarge, short-circuit and temp.
Integrated Monitoring
View real-time parameters directly on the top LCD display or via Bluetooth using the JBD BMS mobile app.
High-Current Output
Delivers up to 200A continuous discharge current to comfortably support high-power inverters.
Long Cycle Life
Tested for more than 6,000 deep cycles under laboratory conditions before reaching 80% remaining capacity.
Compact Installation
Standard 384 × 204 × 270mm footprint with M8 stainless steel terminal posts easily fits standard battery compartments.

BUILT FOR PRACTICAL INSTALLATION
Compact Case, Clearly Marked Connections
Uses solid M8 screw terminals with red (+) and black (-) coding. The top-mounted LCD screen delivers vital battery metrics at a glance without opening battery boxes.
SMART MONITORING
Battery Data at Your Fingertips
The LCD display clearly indicates real-time voltage, capacity percentage, current and alert states.
For Bluetooth connectivity, search for JBD BMS in the iOS App Store or Google Play Store to monitor cell voltages and health stats wirelessly.

TECHNICAL DATA
Specifications Overview
| Pack Model | 4S1P-12.8V-300Ah |
|---|---|
| Chemistry | Grade-A LiFePO4 Cells |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 300Ah (3840Wh) |
| Standard Charge Current | 100A (0.33C) |
| Max Continuous Charge | 200A |
| Max Continuous Discharge | 200A |
| Charge Cut-off Voltage | 14.6V |
| Discharge Cut-off Voltage | 10.8V |
| Net Weight | 24.6kg |
| Dimensions (L*W*H) | 384 × 204 × 270 mm |
| Terminal Type | M8 Stainless Post |
| Operating Temperature | Charge: 0°C ~ 45°C | Discharge: -20°C ~ 60°C |
| Cycle Life | 6000+ Cycles (80% DoD) |
| Smart BMS | JBD 4S 200A with Bluetooth |
BUYER QUESTIONS
Frequently Asked Questions
How much energy does this 12V 300Ah battery store?
It provides 3840Wh (3.84kWh) of nominal energy. Usable runtime depends on total inverter efficiency, discharge rate and operating temperature.
What charger should I use?
Use a dedicated 14.6V LiFePO4 charger with a CC/CV charge profile. The recommended charging current is 60A - 100A (Max 200A).
Can this battery run high-power inverters?
Yes. The 200A continuous BMS allows you to continuously draw up to ~2500W from a compatible 12V inverter (with proper thick gauge DC cabling).
Ready for Dependable 12V Power?
Contact Docan Energy for Houston warehouse local pickup or quick freight shipping across the United States.
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