AMPTRON® 48V 75Ah Lithium LiFePO4 Batteries are an alternative replacement (AR) for most applications currently using a deep cycle Gel, AGM or Flooded Lead Acid battery. The high peak discharge current makes these batteries suitable for high load applications such as in most standard size 48V electric golf carts, utility vehicles and other 48V applications utilising electric motors. The 75Ah capacity usually allows at least 2 full rounds around a golf course without recharging.
Specifications
Model
AT-LFP-48-75BV01
48V 75Ah LiFePO4 Battery
Chemistry
Lithium Iron Phosphate (LiFePO4)
Battery dimensions
L-520mm x W-268mm x H-228mm
L x W x H
Weight
35kg
Cell type
3.2V 75Ah
Prismatic cells
Battery module
16 pcs 3.2V 75Ah cells, 1 parallel and 16 serial
Casing material for single cell
Aluminium
Standard capacity（0.2C5A）
51.2V 75Ah / 3840Wh
Cycle life
> 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
Rated voltage
51.2V
Working voltage per cell: 3.2V
Charge voltage
58.4V
Max. charge voltage per cell: 3.65V
Cut-off voltage
Nominal 40V
Cut-off is triggered when the first cell reaches 2.50V
Depth of discharge (DoD)
100%
Batteries can be discharged to 100% of the rated capacity
Optimum charge current
15A
0.2C
Charging time
Approximately 5 hours
When charging from low voltage cut-off point
Rapid charging
Max. charge current 75A (1C75A)
Cell max voltage < 3.9V
Max continuous discharge current
75A
1C, cell min voltage> 2.0v
Peak discharge current
200A
2.6C（5 seconds)
Discharge performance in normal temperature
15A (0.2C15A) ≥ 100％ 75A (1C37.5A) ≥90％
Operating temperatures
Standard 0℃～45℃ Discharge -20℃～65℃ Storage -20℃～45℃
Impedance (Max, at 1000Hz.)
≤ 45mΩ
Storage performance
Capacity can be kept ≥ 80% in storage for 12months
Battery should be kept at -20℃ ～ 45℃ where it’s dry, clean and well-ventilated.
Connecting Terminals Pos (+) & Neg (-)
M8
IP Rating (Ingress Protection)
IP65
Protected from total dust ingress & Protected from low pressure water jets from any direction
