4.0ah is great for my extended use away from a charger. The 1.5ah batteries can’t provide the current draw capacity for higher torque use. This is great.
Verified purchase: Yes | Condition: New
Really worth the upgrade as an extra battery
Verified purchase: Yes | Condition: New
I only had a 1.5ah battery that was good until it died .getting the 4ah battery best thing I have done
Verified purchase: Yes | Condition: New
4.2 ah battery gives over twice the use iife of the standard battery.
Verified purchase: Yes | Condition: New
This battery is a blessing haha. Now I can vacuum my complete house without running low on power. 😃
Verified purchase: Yes | Condition: New
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