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LiFePO4 26650 Battery Assumptions
| Specification | Value |
|---|---|
| Nominal Voltage | 3.2v |
| Max Voltage | 3.6v |
| Cutoff Voltage | 2.0v |
| Capacity | 2300mAh |
Battery Spec 4S30P - 60Ah
| 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 60Ah/2.0Ah | 30 |
| Total Cells Required | 120 |
Dimensions (W x L x H) 1 cell: 26mm x 65mm pack size: 26*4 x 26*30 x 65 | 104mm x 780 mm 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 |
| Battery | 26650 LiFePO4 |
| Info | https://secondlifestorage.com/showthread.php?tid=5451 |
| Video - Teardown | https://www.youtube.com/watch?v=AG36QB1WkuY |
Battery Charger
Solar Charger
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Battery Examples
Tesla's Power Wall
| Capacity | Ah @12V | Cost |
|---|---|---|
| 7 Kwh | =7000/12 =583 Ah | $3,000 US |
| 10 Kwh | =10000/12 =833 Ah | $3,500 US |
D's POwer Wall
| Spec | Details |
|---|---|
| Capacity | 4.4Kwh |
| Ah @12V | 366 Ah |
| #cells | 600 |
| Cell | 18650 |
References
| Reference | URL |
|---|---|
| Buying Used Batteries | https://batteryhookup.com/ |
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