The 12V 200Ah LiFePO4 Battery is a 12.8-volt block of 2,560 watt-hours on M8 terminals, rated IP65. It is a large house battery for a full-time RV or an off-grid site, the size at which a 12-volt air conditioner comes within reach.
Running An Air Conditioner
The honest numbers
A rooftop 12-volt RV air conditioner draws close to 80 amps when its compressor runs hard. A single 200Ah battery holds that within its 100-amp continuous rating for about two hours of cooling. For a full night a rig parallels two blocks for 400 amp-hours and reaches three to four hours, or pairs the bank with solar to run the unit through the day without drawing the batteries down.
| Battery bank | 12V AC at ~80A |
|---|---|
| One 200Ah block | ≈2 hours |
| Two in parallel (400Ah) | ≈3–4 hours |
| 400Ah + daytime solar | continuous in sun |
Off-Grid House
A day and a half of everything
Away from the air conditioner, 2,560 watt-hours carry a full-time rig’s day and a half: the fridge at 30 to 60 amp-hours, lights, water, a fan, electronics and a 1,000-watt inverter for cooking in spells. The depth of discharge stays shallow on that load, below what the 4,000-cycle rating assumes.
Against Lead
Store, weight and life
Reaching 200Ah in lead takes two heavy batteries, about 100 usable amp-hours between them at close to 55 kilograms. This one block gives the full 200 amp-hours at 19.9 kilograms and more than 4,000 cycles, in a single case wired once.
Data
Datasheet
| Model | DC12-200 |
|---|---|
| Nominal voltage | 12.8V |
| Capacity | 200Ah |
| Energy | 2560Wh |
| Charge voltage | 14.6V |
| Discharge cutoff | 10V |
| Continuous discharge | 100A |
| Peak discharge | 400A (5s) |
| Cycle life | ≥4,000 cycles @80% DOD |
| Weight | ≈19.9 kg |
| Dimensions | 522 × 240 × 218 mm |
| Terminals | M8 |
| Operating temperature | Discharge -20~60°C / Charge 0~45°C |
| Protection rating | IP65 |
| Certification | UN38.3 / CE / FCC / RoHS |
Fit
Charging and banks
A 14.6-volt charge comes from a lithium charger or an LFP solar controller. Two or more blocks in parallel build the bank an air conditioner needs, brought to the same resting voltage first.
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