600Wh to Ah — 50 Ah at 12V
600 Wh is 50 Ah at 12V, 25 Ah at 24V, and 12.5 Ah at 48V. Below: usable energy per chemistry, what it runs, and which module count gets you there.
600 Wh at 12V is 50 Ah of battery capacity.
Formula: Ah = Wh ÷ V. Divide by the nominal battery voltage of the bank, not by the charger voltage.
Result
Energy in Wh equals capacity in Ah multiplied by battery voltage. 1000 Wh equals 1 kWh.
Need a complete wiring diagram?
VoltPlan designs full electrical systems for campers, boats, and off-grid setups with automatic wire sizing, fuse placement, and battery configurations.
Design Your SystemAt every system voltage
The same capacity stores four times the energy at 48V that it does at 12V, and draws a quarter of the current for the same load.
| System voltage | Capacity | Energy | kWh |
|---|---|---|---|
| 12 V | 50 Ah | 600 Wh | 0.6 |
| 24 V | 25 Ah | 600 Wh | 0.6 |
| 48 V | 12.5 Ah | 600 Wh | 0.6 |
How much of it you can actually use
Nameplate energy is not usable energy. Depth of discharge caps what you may take out before you damage the battery, and it differs by chemistry.
| Chemistry | Depth of discharge | Usable energy | Usable capacity | Cycles at that DoD |
|---|---|---|---|---|
| LiFePO4 | 80 % | 480 Wh | 40 Ah | ~3,500 |
| AGM | 50 % | 300 Wh | 25 Ah | ~600 |
| Gel | 50 % | 300 Wh | 25 Ah | ~800 |
| Flooded lead-acid | 50 % | 300 Wh | 25 Ah | ~400 |
What that runs
Runtime from the usable LiFePO4 energy at 12V (80% depth of discharge), one load at a time, no inverter losses on the DC rows.
| Load | Power | Runtime |
|---|---|---|
| LED lighting | 15 W | 32 h |
| 12V compressor fridge (average) | 45 W | 10.7 h |
| Diesel heater (fan and glow plug average) | 30 W | 16 h |
| Water pump (while running) | 65 W | 7.4 h |
| Laptop plus router | 75 W | 6.4 h |
| Kettle through an inverter | 1200 W | 0.4 h |
What this size is in practice
600Wh is the most common mid-size power-station rating and the usable energy of a 12V 60Ah LiFePO4 at full discharge. It covers a fridge plus lighting for a day, but not an inverter kettle.
Building the same energy from standard modules
How many standard 100Ah 12V modules add up to this energy, and what capacity that becomes at each system voltage.
| System voltage | Capacity | Standard modules |
|---|---|---|
| 12 V | 50 Ah | 1 x 100Ah / 12V |
| 24 V | 25 Ah | 1 x 100Ah / 12V |
| 48 V | 12.5 Ah | 1 x 100Ah / 12V |
Other energy values (Wh)
Other capacities (Ah)
FAQ
How many Ah is 600 Wh?
600 Wh is 50 Ah at 12V, 25 Ah at 24V, and 12.5 Ah at 48V. Divide the watt-hours by the nominal battery voltage: Ah = Wh ÷ V.
How much of that 600 Wh can I use?
On LiFePO4 at 80% depth of discharge you get 480 Wh (40 Ah at 12V). On AGM or gel at 50% you get 300 Wh (25 Ah). Same nameplate, very different usable energy.
How long does that run a 12V fridge?
A compressor fridge averaging 45 W runs about 10.7 hours on the usable LiFePO4 energy at 12V. Cycling depends on ambient temperature, so treat this as the upper bound for a well-insulated unit.
What capacity is 600 Wh on a real LiFePO4 module?
At the true LiFePO4 nominal voltage of 12.8V, 600 Wh corresponds to 46.9 Ah. At a round 12V it is 50 Ah. Datasheets use 12.8V, most calculators use 12V.
Related Calculators
Battery Bank Sizer
From daily Wh to required Ah, with chemistry-aware DoD and series/parallel layout.
Battery Runtime Calculator
How long this capacity runs your actual load list before hitting the DoD limit.
Charge Time Calculator
How long solar, alternator, or a mains charger needs to refill this bank.
Ah to Wh Guide
Why Wh is the only fair way to compare batteries, with worked camper examples.