Wild Badger Power 40V 18" Cordless Lawn Mower Brushless , 5,445 sq ft/0.125 ac, 1×4.0Ah Battery & Fast Charger, 5-Position Height ,for Small-to-Medium Lawns

What It Is

This is the complete battery and charger kit for the Wild Badger Power 40V 18" cordless brushless lawn mower. It includes one 4.0Ah battery and a fast charger, designed to power the mower on lawns up to 5,445 sq ft (0.125 acres).

Fitment & Compatibility

Check these before buying:

• Model fit: Only for the Wild Badger Power 40V 18" brushless mower (not the 20" or gas models). Must match the 40V system.
• Battery type: 40V lithium-ion, 4.0Ah capacity. Not backward-compatible with older Wild Badger 20V or 60V tools.
• OEM vs aftermarket: This is the OEM Wild Badger battery and charger. Aftermarket batteries may have different plug shapes or voltage tolerances—stick with OEM to avoid charging issues.
• Deck size: Works only with 18" deck mowers (not 14" or 20" models).
• Physical check: Battery measures approx. 5.5" x 3" x 4". Ensure the battery compartment on your mower is clean and free of debris.

Key Things to Know

• Quality: OEM battery offers reliable runtime (~45 min on medium grass), but the 4.0Ah is the smallest capacity—expect to recharge for larger lawns.
• Installation: Zero difficulty—slide battery into mower slot until it clicks. Charger plugs into standard 120V outlet.
• Common gotcha: The charger has a cooling fan that runs during charging; place it on a flat, ventilated surface. Do not charge in direct sunlight or below 32°F.
• Battery care: Store at 40-60% charge if not using for months. Full discharge can shorten lifespan.

Should You Buy It

Buy this if you need a replacement or spare battery and charger for your Wild Badger 40V 18" mower, and your lawn is under 0.125 acres. It’s a solid OEM option for small-to-medium yards, but if you have a larger lawn or want longer runtime, consider buying a second battery (sold separately) or stepping up to a 6.0Ah pack.