Main advantages:
➢ High capacity – 300Ah (3840Wh), which ensures long-term autonomous operation.
➢ Durability – up to 6000-8000 cycles at a depth of discharge of 80%.
➢ Intelligent management system BMS-JK-B1A8S20P – controls the charge, discharge and safety of the battery.
➢ Fast charging – supports charging current up to 200A, recommended charger – 14.6V60A.
➢ Resistance to extreme temperatures – operates in the range from -20°C to +60°C.
➢ Compactness and protection – Rugged housing with IP65 protection class against dust and moisture.
➢ No memory effect – the battery retains its maximum performance without losing capacity.
Intelligent management system BMS-JK-B1A8S20P
The battery is equipped with BMS (Battery Management System) JK-B1A8S20P, which is responsible for:
✔ Overcharge protection – turns off charging when exceeding 14.6V.
✔ Deep discharge protection – turns off discharge when the voltage drops below 10V.
✔ Element balancing – equalizes voltage between cells to increase service life.
✔ Overload protection – prevents battery failure due to excessive currents.
✔ Temperature monitoring – disconnects the battery when it overheats or overcools.
✔ Bluetooth connection (optional) – allows you to monitor the battery status via a mobile application.
Technical specifications:
| Parameter | Value |
|---|---|
| Battery type | LiFePO4 (lithium iron phosphate) |
| Nominal capacity | 300 Ah (3840 Wh) |
| Life cycle | 4000-8000 cycles |
| Nominal voltage | 12.8 V |
| Maximum charge current | 200A |
| Recommended charger | 14.6V60A |
| Charging voltage | 14.2V - 14.6V |
| Discharge current (nominal) | 60A |
| Maximum discharge current | 200A (constant), 400A (peak 5 seconds) |
| Discharge cut-off voltage | 10V |
| Internal resistance | ≤25 mΩ |
| Dimensions | 205x174x72 mm |
| Weight | 26.8 kg |
| Terminal type | M8 |
| Grade protection | IP65 |
| Operating temperature (charge) | 0°C ~ 50°C |
| Operating temperature (discharge) | -20°C ~ 60°C |
Scope of application:
✔ Alternative energy (solar and wind power plants)
✔ Autonomous power supply for campers, yachts, caravanning
✔ Backup power systems (UPS, servers)
✔ Electric transport, industrial projects
📌 IMPORTANT!
✔ Use only special chargers for LiFePO4 batteries.
✔ Avoid deep discharge below 10V.
✔ Do not allow short circuits between terminals.
✔ Store in a dry, cool place if not used for 3 months.
🔹 You can buy LiFePO4 battery 12.8V - 300Ah (BMS-JK-B1A8S20P) in the WST store with a quality guarantee and fast delivery across Ukraine. We have an affordable price, professional advice and the possibility of return or exchange.
