Set of 2 Lithium LiFePO4 Batteries 12V 50Ah — Pack 1.28 kWh (BMS, 12V/24V)

Discover the professional anemometer, the ideal tool for accurately measuring wind speed, temperature, and air humidity, both outdoors and indoors. Designed for gardening enthusiasts and professionals, this device offers you complete weather monitoring and graphical forecasts for the next 24 hours. Its compact and modern design fits perfectly into any outdoor or indoor environment.

Double the autonomy or switch to 24 V in the blink of an eye.
This pack brings together two compact and durable LiFePO4 12.8 V / 50 Ah modules, to form either a 12 V 100 Ah bank (parallel), or a 24 V 50 Ah system (series). Ideal for residential solar, camper van, boat, backup power, or any autonomous site where reliability, safety, and controlled weight make the difference.

Pack highlights

• 1.28 kWh usable: two 640 Wh modules to cover daily needs in 12 V or 24 V.
• Configuration flexibility: parallel (12 V 100 Ah) for more autonomy, or series (24 V 50 Ah) for 24 V compatibility.
• LiFePO4 Longevity: more than 3000 cycles at 80% discharge with a truly usable capacity.
• Integrated electronic management: BMS per battery (overcharges, over-discharges, short circuits).
• Contained weight & compact format: easy to handle, fit, and secure.
• Very low self-discharge: prolonged storage without special maintenance.
• Plug & play: M6 terminals, simple wiring, perfect for extending an existing system.

Usage ideas

• 12 V or 24 V solar kits (house, cabin, workshop, remote site)
• Recreational vehicles (van, camper), boats
• Backup power supply (inverter, small home automation, pumps, LED lighting, 12/24 V fridge)
• Mobile applications requiring energy density and robustness

Essential characteristics — Pack (2 × 50 Ah)

• Technology: Lithium Iron Phosphate (LiFePO4)
• Total energy: 1.28 kWh (2 × 640 Wh)
• 12 V configuration (parallel): 12.8 V 100 Ah
• 24 V configuration (series): 25.6 V 50 Ah
• Max charge current (12 V //): up to 100 A (2 × 50 A, depending on wiring and charger)
• Max discharge current (12 V //): up to 100 A (2 × 50 A)
• Max charge current (24 V series): 50 A (current does not double in series)
• Max discharge current (24 V series): 50 A
• Pack weight: ≈ 11.5 kg (2 × 5.74 kg)
• Terminals: M6 screw (per battery)

Characteristics per battery (unit)

• Capacity: 50 Ah
• Energy: 640 Wh
• Nominal voltage: 12.8 V
• Charging voltage (max): 14.6 V
• Discharge cut-off threshold: 10 V
• Standard charging current: 25 A
• Standard discharge current: 25 A
• Charging temperature: 0 → 55 °C
• Discharge temperature: −20 → 55 °C
• Dimensions (L × W × H): 232 × 135 × 181 mm
• Weight (unit): 5.74 kg
• Management: Integrated BMS (overcharge/over-discharge/short-circuit protection)

Implementation advice

• Before assembly: fully charge each battery then let it rest, to start with the same level.
• Parallel (12 V): connect + to + and − to − with same lengths/sections; install a fuse on the positive side of the pack.
• Series (24 V): connect the − of battery A to the + of battery B; the two free terminals form the 24 V output; 24 V LiFePO4 charger required (≈ 29.2 V at end of charge).
• Cables & protections: size the section according to intensity and length (provide suitable fuses/circuit breakers).
• Best practices: do not mix batteries of different ages or models; avoid charging < 0 °C; ensure solid fixation and minimal ventilation.

Contents of the lot

• 2 × LiFePO4 12.8 V 50 Ah batteries (M6 terminals, integrated BMS)
• Not included: cables, lugs, fuses, charger (12 V or 24 V depending on setup), inverter

Charge compatibility

• 12 V setup: LiFePO4 12 V charger (profile 14.6 V – end of charge with suitable maintenance).
• 24 V setup: LiFePO4 24 V charger (profile ≈ 29.2 V).
• MPPT regulators and 12/24 V inverters compatible depending on chosen configuration.

2-year warranty

DE-L13060202005-2 / 15801