Best 24V and 36V Lithium Batteries Under $600

The lowest-cost route to 24V 100Ah for solar and RV builds. Buyers give up an app and a clearly stated warranty for the savings.

A very cheap 24V 100Ah with Bluetooth for RV and solar use. The sparse listing leaves fit and warranty questions open.

A plain 24V 100Ah for solar and RV systems with a handy built-in charge display. The thin spec sheet makes it harder to judge against rivals.

Designed for home backup and RV solar installs where a metal case and power switch add safety. It is not shaped for marine trays.

A sensible 24V 100Ah pick for RVs, solar and larger boats where an app and cold protection matter. It costs only a little more than the basic version.

Aimed at Victron-based RV and home solar systems that want closed-loop battery data. Without a Victron system the plain Bluetooth version does the same job for less.

A budget 24V 100Ah for RV, solar and boat systems in mild weather. It is close to the Power Queen 24V 100Ah in price and ratings.

A budget 24V 100Ah battery for RV and solar systems in mild climates. Buyers who charge in the cold should pick a model with a cutoff or heater.

The lowest-cost way into lithium for a 24V trolling motor on a small boat. Buyers who want an app should spend a little more on a Bluetooth 50Ah.

A low-cost 24V 100Ah battery for RV and solar setups kept above freezing. Buyers who want an app or cold-weather protection should look at the Bluetooth version.

A low-cost pick for kayak and small-boat 24V trolling motors. It trades a little headroom for the lowest price in its size.

A light, affordable choice for 24V trolling motors on kayaks and small boats. Heavier use calls for the 60Ah or 100Ah sizes.

A low-cost 24V trolling motor battery for kayaks and small boats. It matches the LiTime and Redodo 50Ah models closely.

A good fit for anglers with a Group 24 tray who want more runtime than a 50Ah battery gives. The price premium over the 50Ah is steep for the added capacity.

A strong value for 36V trolling motors, with far more current headroom than the 50Ah competition. Check that the GC2 height fits before buying.

The budget pick for 36V trolling motors in a Group 31 tray. Skipping Bluetooth saves money over the Power Queen and LiTime versions.

A solid 36V trolling motor battery for boats with a Group 31 tray and a mid-size 36V motor. It is priced close to the LiTime and Redodo equivalents.

A straightforward lithium swap for 36V trolling motors in a Group 31 tray. Tournament anglers running high thrust all day may want 100Ah.