LiFePO4 and AGM: Capacity and Runtime Assumptions
Chemistry changes the calculator’s usable-capacity assumption. The default application model uses 0.9 for LiFePO4 and 0.5 for AGM. These are planning factors, not a verified promise that every battery can deliver that fraction under every temperature or load.
Updated 10/11/2026 · ai assisted
The decision to make
Chemistry changes the calculator’s usable-capacity assumption. The default application model uses 0.9 for LiFePO4 and 0.5 for AGM. These are planning factors, not a verified promise that every battery can deliver that fraction under every temperature or load.
What the calculation can establish
Compare products using voltage, continuous current, permitted bank configurations and manufacturer instructions. The initial real catalog contains LiFePO4 products only; an AGM scenario is hypothetical, not an available verified recommendation. Verify charging and installation instructions directly for your chosen model.
| Property | How this site handles it |
|---|---|
| LiFePO4 usable factor | Default planning assumption: 0.9 |
| AGM usable factor | Default planning assumption: 0.5 |
| Weight | Display only with verified field evidence |
| Charging compatibility | Outside this engine; consult manufacturer instructions |
Try the calculation with your setup
How long can you stay out?
Compare estimated battery runtime across four usage levels. Choose products or enter known specifications.
Verified product examples
| Configuration | Thrust / capacity | Voltage | Shaft / current | Mount / chemistry | GPS |
|---|---|---|---|---|---|
| LiTime 12V 100Ah Group 24 | 100 Ah | 12.8 V | 100 A | lifepo4 | Not applicable |
| LiTime 12V 100Ah Group 24 Dual Purpose | 100 Ah | 12.8 V | 100 A | lifepo4 | Not applicable |
| LiTime 12V 100Ah Group 31 TM Bluetooth | 100 Ah | 12.8 V | 100 A | lifepo4 | Not applicable |
| LiTime 12V 50Ah | 50 Ah | 12.8 V | 50 A | lifepo4 | Not applicable |
| LiTime 24V 100Ah | 100 Ah | 25.6 V | 100 A | lifepo4 | Not applicable |
Questions to resolve before buying
Can I use this example as an installation approval?
No. Run the tools with your exact models and measurements, then confirm the operating range, wiring, protection and bank permissions with the manufacturers.
What if the calculator returns unknown or no match?
Supply missing evidence or measurements. Do not turn an unknown field into a yes, and do not choose an undersized product just because it is the only item shown.