Manual / Off-season storage

How to Store Mower, Boat, Motorcycle and Golf Cart Batteries Over Winter

Charge fully, clean, store cool and dry, and check monthly. Seasonal batteries that start again in spring.

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Chapter 8 · about 6 min · updated Oct 2026

A seasonal battery that sits half-charged all winter can sulfate and lose capacity for good. A little care in the fall avoids that.

The four steps

  1. Charge fully before storage. A discharged lead-acid battery can freeze; a full one rarely does.
  2. Clean the case and terminals with baking soda and water; dry well.
  3. Store cool, dry and above freezing, off direct contact with a damp floor if you can (a wooden shelf is ideal).
  4. Check monthly with a multimeter, or leave it on a smart maintainer.

Golf cart packs

Check water levels in flooded cells (distilled water only, after charging), charge the whole pack, and keep the cart plugged into a charger with a storage mode.

Motorcycles and mowers

Small batteries self-discharge fast. A small maintainer is cheap insurance.

From the toolbox

Found a battery that didn't survive last winter? Some people try reconditioning before recycling it. The Easy Battery Fix guide covers lead-acid and deep-cycle batteries; we looked at it closely.

Read our honest review →

Golf cart and deep-cycle owners may want to see the reconditioning guide we reviewed, since those packs are expensive to replace.

Easy Battery FixIncludes sections on deep-cycle and golf cart batteriesSee it