AMPTRON 12V 50Ah Lithium LiFePO4 Batteries are an alternative replacement (AR) for any application currently using a deep cycle Gel, AGM or Flooded Lead Acid battery. The maximum continuous discharge current is 70A and peak discharge current 140A for 5 seconds.
Our Lithium batteries use a high quality robust integrated Battery Protection System (BPS) and is designed to manage and control all the battery protection requirements. The BPS maximizes the performance of the battery by automatically balancing the cells and protecting them from being over charged or over discharged. Our integrated BPS design is what allows our batteries to be used as an AR "Alternative Replacement" for any application requiring durable, high quality, dependable and lightweight Lithium Batteries.
12V 50Ah Lithium LiFePO4 battery
Lithium Iron Phosphate (LiFePO4)
L-196mm x W-166mm x H-175mm
4 pcs 3.2V 50Ah cells, 1 parallel and 4 serial
Casing material for single cell
Nickel plated Steel
50Ah / 640Wh
> 2000 cycles at 100% Depth of Discharge (DoD)
Under normal usage where the DOD is <80%, cycle life is expected to be up to 5000 cycles
Working voltage per cell: 3.2V
Max. charge voltage per cell: 3.65V
Discharge voltage per cell: 2.50V
Depth of discharge (DoD)
Batteries can be discharged to 100% of the rated capacity
Optimum charge current
Approximately 5 hours
When charging from low voltage cut-off point
Max. charge current 50A (1C3A)
Temperature increase falling within 15°C is normal. Over 15°C will affect the service life of the cells.
Max continuous discharge current
Peak discharge current
2C (5 seconds)
Discharge performance in normal temperature
0.2C3A ≥ 100% 1C3A ≥90%
Discharge capacity / standard capacity×100%
Standard 0℃～45℃ Discharge -20℃～65℃ Storage -20℃～45℃
Impedance (Max, at 1000Hz.)
Capacity can be kept ≥ 80% in storage for 12months
Battery should be kept at -20℃ ～ 45℃ where it’s dry, clean and well-ventilated.
AMPTRON lithium batteries use a high quality robust built-in Battery Protection System (BPS) designed to prevent damage to the cells from almost any external accidental occurrence that would normally cause damage. The internal BPS will automatically disconnect to prevent damage to the cells if the battery drains below 10 volts. It will automatically reconnect when the charger is turned on. This protects the battery from over-discharging and damaging the cells. This technology also protects the battery from short circuit and reverse polarity.
Low Voltage Protection Switch - Automatically disconnects around 10V
Over Voltage Protection Switch - Automatically disconnects around 14.8V
Short Circuit Protection Switch - Automatically disconnects
Charge Balancing - Independent balancing for multiple batteries connected in parallel or in series.
This Battery Protection System is designed to last throughout the life of the battery and provide reliable power for thousands of cycles.
CELL BALANCING The BMS balances the cells by sending more current through the length way circuit boards and into cells with a lower voltage. The BMS will also discharge cells that exceed 3.65V during charging.
THERMAL FUSE Internal Cell Safety Fuse Our latest cell technology is manufactured with a internal thermal safety fuse between the anode and cathode that will break and disconnect in the unlikely event the cell would begin to overheat.
SAFETY VENT High pressure safety vent Each cell has a high pressure safety vent that will flip open to release energy and prevent explosion.
ELECTROLYTE Flame Retardant Electrolyte Our cells are manufactured with our patented flame retardant additive in our electrolyte.
EXPLOSION PROOF Explosion proof Nickel plated steel Every AMPTRON cell is manufactured in our explosion proof Nickel plated steel Prismatic case.
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