Today Only: $100 Off Bosch 18V 4.0Ah Battery, Now $59

Batteries are the fuel that keeps a cordless shop running, and today only you can grab a Bosch 18V 4.0Ah battery for $100 off. That drops it from $159 to just $59, a 63% savings on one of the lightest high power batteries Bosch makes. This deal ends tonight, September 16, 2026. This post contains affiliate links, which means I may earn a small commission if you buy through them—at no extra cost to you. It helps keep the tool deals coming, so thanks for your support!

⚠️ Prices valid at time of posting but are subject to change at anytime.

👉 Get the Bosch 18V 4.0Ah Battery for Just $59 Today

Final Price Breakdown

• Regular price: $159

• Discount: $100 off (about 63% off)

• You save: $100

• Deal price: $59

• Expires: Today only, September 16, 2026

Why This Tool Is Worth It

Running out of battery in the middle of a cut is a momentum killer. An extra 4.0Ah pack means less downtime and more time actually building.

This battery uses 21700 cell technology to deliver more power for longer, while weighing only 1.15 lbs. That keeps your drills, saws, and sanders lighter in hand, which makes a real difference during long sessions.

It also charges fast, hitting 80% in 48 minutes. Add AMPShare compatibility, and this one battery can power Bosch tools plus a growing lineup from other AMPShare brands.

Features

• Compact 18V battery provides next generation power and runtime while cutting weight, for tools used on the jobsite all day

• Charging convenience allows the 18V 4.0Ah battery to reach 80% in 48 minutes or 100% in about an hour

• High power cells use enhanced 21700 cell technology and advanced design to produce higher power for a longer time

• Cutting edge cell design is engineered to improve performance in tools used all day

• Bosch exclusive CoolPack 2.0 technology cools the battery 15% faster than previous versions

• Lightest high power battery weighs only 1.15 lbs but performs comparably to much heavier batteries

• Battery status indicator shows whether the charger is in standard charging mode, long life mode, or when charging is complete

• AMPShare™ System compatibility works with Bosch 18V power tools and a growing list of cordless products from AMPShare™ brands

• Bosch 18V chargers carry a five year limited warranty, and Bosch 18V batteries carry a three year limited warranty

Who This Is Best For

This battery is ideal for anyone already running Bosch 18V tools or AMPShare compatible products. Woodworkers, contractors, remodelers, and DIYers will all benefit from having an extra lightweight pack ready to go.

It belongs in woodworking shops, garage workshops, and job site setups where cordless tools get used all day. At $59, it's also a smart way to build out your battery supply before your next big project.

Last Chance for This Price

A $100 discount on a Bosch 18V 4.0Ah battery won't last past midnight. Grab one before this deal disappears. 🔋

👉 Save $100 on the Bosch 18V Battery Before It Ends Tonight

How many batteries do you keep charged and ready in your shop? Let us know in the comments!

Never miss a sale at Lowe's! Visit our updated Lowe’s Tool Deals Hub to see every current offer in one place. You can also compare these prices against our other major tool guides for The Home Depot, Amazon, and Rockler.