When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Featherlight 20.5 lbs – 50 lbs Lighter Than Lead-Acid
Save your back and maximize payload. At just 20.5 lbs, this is one of the lightest 12V 100Ah batteries on the market – nearly 50 lbs lighter than traditional lead-acid. Built-in nylon strap makes carrying effortless. Perfect for kayaks, small boats, and off-grid camping where every pound counts.True Group 31 Drop-In – No Modifications Needed
Measures 13.09 × 6.91 × 8.85 inches – a perfect 1:1 replacement for standard Group 31 battery boxes. Includes dual M8 terminal bolts (14mm & 16mm) so you can easily stack multiple ring terminals for inverters, solar controllers, and more without running out of thread space.100A BMS with 1280W Output – Steady Power on the Water
Upgraded 100A Battery Management System delivers up to 1280W continuous output – powers 30–55 lb thrust trolling motors, fish finders, and RV appliances smoothly. No voltage drops, no frustrating shut-offs. Reliable performance when you need it most.Low-Temp Cut-Off & 10-Year Lifespan – Built for Extremes
Smart BMS automatically stops charging below 32°F (0°C) to prevent cell damage during winter use. Premium Grade-A LiFePO₄ cells deliver 6,000+ deep cycles and a 10-year service life – 8–10× longer than lead-acid. Full protection against overcharge, over-discharge, and short circuits.4S4P Expandable – Scale Up to 20.48kWh
Build your ultimate power station – supports up to 4S4P configuration for 51.2V 400Ah (20.48kWh) total capacity. Perfect for off-grid cabins, home backup, or large RV solar setups. Start with one, expand as your needs grow. Backed by responsive customer support.On Aug 19, 2026 at 23:18:17 PDT, seller added the following information:On Aug 28, 2026 at 04:37:36 PDT, seller added the following information:On Sep 3, 2026 at 02:45:09 PDT, seller added the following information:On Sep 20, 2026 at 01:23:36 PDT, seller added the following information:
On Sep 22, 2026 at 03:31:00 PDT, seller added the following information:
On Sep 22, 2026 at 19:50:19 PDT, seller added the following information: