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| Specification | Value |
|---|---|
| Nominal Voltage | 3.2v |
| Max Voltage | 3.6v |
| Cutoff Voltage | 2.0v |
| Capacity | 2300mAh |
Battery Spec
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4S24P - 48Ah (based on salvaged batteries)
| Specification | Value |
|---|---|
| Nominal Voltage (4 x 3.2v) | 12.8v |
| Max Voltage (4 x 3.6v) | 14.4v |
| Min Voltage (4 x 2.0v) | 8v |
| Cells in Series for Voltage | 4 |
Parallel Cells to Get Capacity 60Ah48Ah/2.0Ah | 3024 |
| Total Cells Required | 12096 |
Dimensions (W x L x H) 1 cell: 26mm x 65mm pack size: 26*4 x 26*30 24 x 65 | 104mm x 780 mm 624mm x 65mm |
Salvaged Batteries
The salvaged batteries were taken from a BAE UPS battery pack.
| Spec | Values |
|---|---|
| Make | BAE |
| Model | 235C9387G1 |
| Voltage | 40V |
| Configuration | 12S8P 12*3.2v = 38.4v |
| Current | 2250A |
| Watt Hours | 736 wH |
| Equivalent Ah for 12v | =P/V = 736/12 = 61Ah |
| Battery | 26650 LiFePO4 |
| Info | https://secondlifestorage.com/showthread.php?tid=5451 |
| Video - Teardown | https://www.youtube.com/watch?v=AG36QB1WkuY |
Observations:
| Battery Configuration | Estimated Capacity (~2Ah/cell) |
|---|---|
4S8P | =2Ah * 8 = 16Ah |
4S24P | =2Ah * 24 = 48Ah |
Battery Charger
Solar Charger
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