QLbattery
QBG512300 51.2V 300Ah Wall-Mounted LiFePO4 Battery
QBG512300 51.2V 300Ah Wall-Mounted LiFePO4 Battery
The QBG512300 is a 51.2V 300Ah LiFePO4 energy storage battery (15.36kWh) for home solar, off-grid and backup systems, mountable on a wall or on the floor and compatible with leading inverter brands.
Built with Grade A LiFePO4 cells, it delivers over 6,000 cycles at 80% depth of discharge (roughly 5x lead-acid cycle life), with smart BMS protection and a 5-year warranty. It works in a 43.2-57.6V voltage window with 200A discharge current, communicates via RS232/CAN/RS485 (WiFi/BT optional), and supports up to 15 units in parallel for scalable capacity.
Key Specifications
| Nominal voltage | 51.2V |
| Nominal capacity | 300Ah |
| Nominal energy | 15.36kWh |
| Operating voltage | 43.2-57.6V |
| Charging current | 150A |
| Discharging current | 200A |
| Cycle life | >6,000 cycles (80% DOD) |
| Protection | IP21 (IP65 optional) |
| Operating temperature | Charge 0-45℃ / discharge -20-60℃ |
| Max parallel | 15 PCS |
| Communication | RS232 / CAN / RS485 (WiFi/BT optional) |
| Warranty | 5 years |
| Weight | 118.1kg |
| Size | 790*530*268mm |
| Certificates | UN38.3, MSDS, CE, ROHS, FCC |
Applications
- Home solar energy storage
- Off-grid and hybrid systems
- Backup power during outages
- Peak shaving and load shifting
FAQ
Which inverters is it compatible with? It is compatible with leading inverter brands via RS232/CAN/RS485 communication.
How much energy does the QBG512300 store? 15.36kWh of usable LiFePO4 energy, expandable by paralleling up to 15 units.
Can it be wall mounted? Yes, both wall-mounted and floor-mounted installation are supported.
How long does it last? Over 6,000 cycles at 80% DOD with a 5-year warranty.
Do you support OEM/ODM? Yes, QLbattery is a 15-year LiFePO4 factory supporting customization and wholesale.
QLbattery is a 15-year LiFePO4 energy storage factory supporting OEM/ODM and wholesale. Contact us for pricing, lead time and the latest datasheet.
