12V 300Ah LiFePO4 Battery

The 12V 300Ah LiFePO4 Battery is a 12.8-volt block of 3,840 watt-hours with a 200-amp continuous rating, on M8 terminals, rated IP65. It is the whole-rig house battery for a full-time RV, a boat-house or an off-grid cabin, sized to feed a large inverter from a single case.

Inverter-Direct

What 200 amps continuous runs

The 200-amp continuous rating carries a 2,000-watt inverter without strain, enough for a microwave, an induction ring or a set of power tools. The 500-amp five-second peak takes the surge of a 3,000-watt unit at start-up. A single battery does the work that a smaller block can only do as a paralleled pair.

Whole-Rig Day

3.8 kilowatt-hours of house power

3,840 watt-hours is a full day of a full-time rig with room to spare. The fridge, lights, water, fan and electronics take their share, and an inverter runs the cooking and the tools. On a boat-house or a cabin the same block carries the domestic loads across an evening and a night without a recharge.

Off-Grid Cabin

One battery, one small home

A small cabin runs its lights, pump, fridge and electronics off a battery this size, refilled by a solar array through an LFP controller. 3,840 watt-hours hold the cloudy day and the long evening. The 4,000-cycle life on a daily cycle is more than a decade before the battery fades. Blocks parallel for a larger bank when the cabin grows.

Against Lead

Store, weight and count

Reaching 300Ah in lead takes three heavy batteries giving about 150 usable amp-hours between them at close to 85 kilograms. This one block gives the full 300 amp-hours at 31 kilograms, wired once, where a lead trio would sag under the inverter load.

Data

Datasheet

Fit

Charging and banks

Charging runs at 14.6 volts off a lithium charger or an LFP solar controller sized to the bank. Added blocks parallel on once their resting voltage matches.