51.2 V 100 Ah lithium battery backup time
How long a 51.2 V 100 Ah LiFePO4 battery (5.12 kWh) runs at different loads.
- About 8 h 10 min at 400 W
- 5.12 kWh stored
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Backup by load
Using 80% depth of discharge and 80% inverter efficiency. Lithium gives nearly the same share of its capacity at any home load, so time falls in step with the load.
| Load | Backup |
|---|---|
| 50 W | 65 h 30 min |
| 100 W | 32 h 50 min |
| 150 W | 21 h 50 min |
| 200 W | 16 h 25 min |
| 250 W | 13 h 05 min |
| 300 W | 10 h 55 min |
| 400 W | 8 h 10 min |
| 500 W | 6 h 35 min |
| 600 W | 5 h 30 min |
| 800 W | 4 h 05 min |
What it runs in a home
Our estimate for a 51.2 V 100 Ah battery, fully charged. Each set is listed on its own page with the appliances in it.
| Home set | Running load | About this long |
|---|---|---|
| 1 BHK home | 276 W | 11 h 50 min |
| 2 BHK home | 519 W | 6 h 20 min |
| 3 BHK home | 671 W | 4 h 55 min |
| Refrigerator | 168 W | 19 h 30 min |
| Air cooler | 466 W | 7 h 05 min |
| Work from home | 303 W | 10 h 50 min |
| Small shop | 390 W | 8 h 25 min |
Models we list
| Model | Warranty | Cycle life |
|---|---|---|
| Loom Solar CAML10051-WM | 60 months | 6,000 cycles at 80% DoD |
| Loom Solar CAML-10051 Rack-Mount | 60 months | Not stated |
Check that your inverter supports lithium before you switch: the charging voltage and cut-off are different from lead-acid.