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Battery Longevity

How to Store Snow Blower Batteries in the Off-Season

A pair of 7.5Ah 56V or 60V lithium-ion batteries costs $600 to replace. Storing them in a 100°F unconditioned Missouri garage all summer can destroy 20% of their total lifespan in a single season.

The 3 Rules of Summer Battery Storage

1. Store Inside Air-Conditioned Living Space

Bring your batteries inside the house (basement, closet, or utility room) where temperatures remain between 60°F and 75°F. Never leave them in a metal shed or closed garage.

2. Store at 40% to 60% Charge (Not Full, Not Empty)

Lithium-ion cells experience the lowest internal chemical stress when stored at roughly 3.8V per cell (2 out of 4 to 5 LED fuel gauge lights). Premium packs like EGO feature automatic self-discharge modes that slowly bleed down to 50% after 30 days of inactivity.

3. Cross-Utilize in Summer Lawn Equipment

The best way to keep battery cells healthy is active, gentle cycling. Use your snow blower batteries in your cordless lawn mower, weed trimmer, or leaf blower during spring and summer.

Frequently Asked Questions

No. While modern smart chargers have trickle-cutoffs, leaving lithium-ion battery cells held at 100% full voltage in an 85°F garage causes cathode oxidation and irreversible capacity loss. Store them off the charger.
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