Higher capacity 2.6 amp battery for extended battery life in Makita 18-volt Tools
Multi-contact terminals ensure a tight connection to the power tool even under extreme vibration
Shock-absorbing construction protects battery cells against dust and vibration
Produces up to 70-percent longer run times than standard Ni-Cd batteries
Fits all Makita 18-volt cordless tools

Amazon.com

The Makita 18-Volt 2.6 Ah Ni-MH Pod-Style Battery Pack features longer run longer than standard Nickel Cadmium (Ni-Cd) batteries. It has no "memory effect". Designed to fit all Makita 18-volt cordless tools?? the battery also features multi-contact terminals to ensure a tight connection?? and a shock-absorbing construction to protect battery cells against dust and vibration.

http://www.amazon.com/gp/product/B000256RDC