21V Max Lithium Battery Pack, 1-Pack
21V 4.0Ah Slide-On Battery
The compact lithium-ion battery uses a black and high-visibility green housing with a slide-on tool interface and a recessed release control.
Single-Battery Configuration
This configuration includes one 21V MAX, 4.0Ah battery pack. Shipping arrangements may vary where battery-handling rules apply.
4.0Ah Capacity
The rated 4000mAh capacity is designed to support extended cordless-tool sessions between charges under normal operating conditions.
Cordless Yard-Tool Power
The slide-on pack mounts beneath a compatible cordless tool handle for mobile outdoor work without a trailing power cord.
Built for Cordless Tool Use
A rigid housing and keyed top interface are designed to seat the battery securely on a compatible cordless power tool.
Secure Release and Interface
The textured release button supports controlled removal, while the shaped slide interface guides the pack into a compatible tool mount.
4000mAh Energy Storage
The 4.0Ah pack balances portable size with capacity intended for longer work sessions than a lower-capacity pack of the same compatible system.
Battery Care Basics
Use only a confirmed compatible charger, keep terminals clean and dry, allow the pack to cool before charging, and stop using it if the housing is damaged or swollen.
Product Specifications
| Pack quantity | 1 battery |
|---|---|
| Listed voltage | 21V Max |
| Battery type | Lithium |
| Compatibility | Matching connector, latch and approved charging system required |
Safety & Use Notes
Use only a confirmed compatible charger. Do not short the terminals, expose the pack to fire or charge a damaged battery. Capacity, charging time and cross-brand compatibility are not confirmed. Contact support with clear connector photos before ordering if uncertain.
Delivery & Support
Free shipping on orders of $35 or more. Returns may be requested within 30 days of delivery, subject to our return policy. For product or compatibility questions, contact support@vincrosser.com.