12V25Ah Lifepo4 Lithium Battery For Emergence Back Up Power ,
Energy Storage System
Specification :
typical Capacity :25Ah 0.2C discharge
Nominal Voltage :12.8V 3.2V/Cell
End Voltage 8.0V 2.0V/Cell
Charging Current (Std.) :5A
Suggested-Continuous Charging Current (Max.) :15A
Charging Voltage :14.6V 3.65V/Cell
Charging Time (Std.) :6~7.0 hours
Charging Time (Max.) :2~3.0 hours
Discharging Current (Std.) :5A
Ambient temperature :-20~+50℃
Discharging Current (Max.) :15A
Ambient temperature :-20~+50℃
Suggested Peak Discharging Current (Max.) :35A <2s
Soft Pack Internal Resistance(25℃) <70mΩ
AC Impedance 1KHz
Soft pack Weight About 2.2kg
Lifepo4 battery advantage :
LiFePO4 battery is the top energy choice for HEV, EV, UPS, electric
tools and electric power storage system,as it is safe,
environment-friendly and powerful with long cycle life and no
memory effect.
Great cyclelife :
Lithium Iron Phosphate technology is that which allows the greatest
number of charge / discharge cycles. That is why this technology is
mainly adopted in Solar and wind Energy Storage , stationary energy
storage systems (self-consumption, Off-Grid, UPS, etc.) for
applications requiring long life.
The actual number of cycles that can be performed depends on
several factors: Pevel of power in C-Rate Depth of Discharge (DOD)
Operational environment : temperature, humidity, etc.
In standard environment, and for 1C cycles, we can get from the
chart the below life cycle estimation for LFP2000 cycles at 100%
DoD: 3000 cycles at 80% DOD 8000 cycles at 55% DOD It should be
noted that following the number of completed cycle, the batteries
still have a nominal capacity > 80% of the original capacity.
Lifepo4 battery cells list :
| Module | Capacity
(Ah) | Voltage (V) | Inner resistance
(mΩ) | Thickness Max(mm) | Width Max(mm) | Height Max(mm) | Energy Density (WH/KG) | High Temp Performance
(55℃) | Low Temp Performance
(-20℃) | 3Cdischarge | cyclelife
(RT 1C/1C) |
| SEPFe80125256P-20Ah | 20 | 3.2 | ≤3.5 | 8.0 | 125.0 | 256.0 | 134 | ≥99% | ≥50% | ≥90% | ≥3000 times |
| SEPFe90161227P-25Ah | 25 | 3.2 | ≤3.0 | 9.3 | 161.0 | 227.0 | 140 | ≥99% | ≥50% | ≥90% | ≥3000times |
| SEPFe11190316P-50Ah | 50 | 3.2 | ≤1.8 | 11.3 | 190.0 | 316.0 | 140 | ≥99% | ≥50% | ≥90% | ≥3000times |
| SEPFe12212268P-50Ah | 50 | 3.2 | ≤1.8 | 11.8 | 212.0 | 268.0 | 140 | ≥99% | ≥50% | ≥90% | ≥3000times |
Battery cells :
