7 picks with specs, filters and a calculator to find the right size.
About a third the weight of lead-acid, and you can use about 80% of the rating. Check the continuous amp rating against your trolling motor’s max draw.
Backed by a 10-year warranty. The BMS blocks charging in the cold, handles 200 A surges for 30 seconds and is rated 3,000 to 5,000 cycles. A heated version is also sold.
Best for: Buyers who want a long warranty and proven reliability.
Check price on Amazon (paid link) Specs from solartown.comA Group 24-size lithium that drops into most battery trays, with 5,000 cycles to 80% capacity and an 11-year defect warranty.
Best for: Swapping out a Group 24 lead-acid battery in the same box.
Check price on Amazon (paid link) Specs from woo.gpscentral.caA value pick in a Group 31 size, rated 4,000 cycles at 100% depth of discharge. It has no low-temperature charge protection, so don’t charge it below freezing.
Best for: Most capacity per dollar for warm-weather use.
Check price on Amazon (paid link) Specs from litime.comA compact 100 Ah battery rated 5,000+ cycles at 80% depth of discharge, with a BMS that stops charging below 32°F.
Best for: Smaller battery trays and solar setups.
Check price on Amazon (paid link) Specs from mygenerator.com.auA budget Group 31-size battery rated 4,000 cycles. The basic model has no low-temperature protection; Redodo’s trolling-motor version adds it.
Best for: Budget builds where the battery stays above freezing.
Check price on Amazon (paid link) Specs from redodopower.comOne battery that replaces two 12 V batteries for a 24 V trolling motor. LiTime rates it for 70 to 100 lb motors, and the app shows charge, current and temperature.
Best for: 24 V trolling motors where saving weight and space matters.
Check price on Amazon (paid link) Specs from litime.comA single 36 V battery in a Group 31 case, rated for 36 V trolling motors up to 120 lb of thrust. It takes the place of three 12 V lead-acid batteries, which together weigh well over 150 lb.
Best for: 36 V bow-mount motors.
Check price on Amazon (paid link) Specs from dakotalithium.comNo products match those filters. Try clearing one.
Pictures are our own illustrations, not photos of the actual products. Specs come from the manufacturer or retailer listing linked on each card and were checked in October 2026. Models and prices change, so confirm details on the listing before you buy. As an Amazon Associate I earn from qualifying purchases.