EFOY Lithium Battery
The ideal introduction to your self-sufficient power supply
The smartest battery control
The integrated intelligent battery management system (BMS) ensures that the EFOY lithium battery’s parameters are monitored and optimized fully automatically. This protects the battery from deep and excessive discharge, which has a positive effect on its lifespan.
The battery for the winter
The EFOY lithium battery also works on ice and snow. This is a clear advantage over all other lithium batteries. Commercially available lithium batteries cannot be charged in winter. Thanks to the integrated heating element, our EFOY lithium battery can be charged quickly and easily even at sub-zero temperatures down to -20°C. This makes our EFOY lithium battery unique!
The EFOY lithium battery fits your coffee machine
High-voltage consumers operating at 230 V, such as coffee makers, hair dryers, kettles, and many others, draw high discharge currents from a battery. The EFOY lithium battery allows for high discharge currents and allows the connection of an inverter of up to 2,500 W.
Splash proof?
Yes, certainly!
The EFOY lithium battery is splash-proof and is therefore ideal for use in the marine sector.
Safe LiFePO4 technology
With the EFOY lithium battery, we rely on proven and safe lithium iron phosphate (LiFePO4) technology. Lithium cells are almost completely reusable and, unlike lead-acid batteries, do not contain environmentally hazardous substances.
The lightest among batteries
The EFOY lithium battery is incredibly lightweight thanks to its high energy density. Conventional 100 Ah lead-acid or AGM batteries weigh around 30 kg. Our largest EFOY Li battery (105 Ah) weighs only half as much (16 kg). This saves weight!
Battery capacity almost 100%
The EFOY lithium battery offers greater capacity than lead-acid or AGM batteries. The battery’s capacity can be utilized almost completely. This is remarkable, as lead-acid batteries can only be discharged to 50%. Use the entire EFOY energy reserve!
EFOY lithium battery comparison
| Property | EFOY Li | Other Li | Lead/AGM |
|---|---|---|---|
| High discharge current | Yes | in part | No |
| Available capacity in % | 102 g | > 90% | about 50% |
| Protected charging up to -20°C | Yes | in part | limited |
| Integrated heating element | Yes | in part | No |
| Splash proof | Yes | in part | in part |
| Integrated battery management system | Yes | in part | No |
| Weight (at 105 Ah) | 16 kg | about 16 kg | about 30 kg |
| Optimized for EFOY fuel cells | Yes | No | No |
EFOY Lithium Battery Instructions
- Technology: Lithium iron phosphate (LiFePO4)
- Nominal voltage: 12.8 V
- Nominal capacity in Ah: 105 Ah
- Comparable capacity of a lead-acid battery: 210 Ah
- Maximum recommended charging current: 52 A
- Maximum continuous discharge current: 105 A
- Battery Management System (BMS): Integrated
- Class: IP 44
- Charging operating temperature²: -20°C to +45°C
- Discharge operating temperature: -20°C to +60°C
- Connection: M8 Auto Alligator Clip
- Dimensions L x W x H (mm): 368 x 175 x 190 mm
- Weight: 16.3 kg
- Interfaces: 2x RJ 12: CAN Bus and EFOY BT2 Bluetooth adapter





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