They are deep-cycle batteries intended for applications such as RV and camper systems, marine and trolling motor use, solar and off-grid systems, and backup power. They should not be used as engine-starting batteries unless the individual product specifically states that use.

A 12.8V 100Ah battery stores about 1.28kWh, while a 12.8V 320Ah battery stores about 4.10kWh. Choose capacity based on required runtime, available space, battery current limits, and the power rating of connected loads.

Connection limits are model-specific. Current 12V 100Ah and 320Ah specifications commonly allow up to four identical batteries in series or up to four in parallel, while also warning against combining series and parallel configurations at the same time. Check the exact product specification before building a battery bank.

Current 12.8V models use a LiFePO4 charge voltage around 14.6V. Recommended and maximum charging current vary by model, so use the values shown on the individual product page or manual.

Divide usable battery energy in watt-hours by the average load in watts, then allow for inverter and system losses. For example, a 1,280Wh battery powering a 500W load has a theoretical runtime of about 2.6 hours before losses.

Standard LiFePO4 batteries should not be charged below 0°C / 32°F. Self-heating models use incoming charging power to warm the battery before charging when the required conditions are met.

Many current models include Bluetooth monitoring, but features vary by SKU. Check the product feature list for the exact battery.