Powerextra 12V 2000mAh Replacement Power Tool Battery Compatible with Makita 5092D 5092DW 6011D 6011DW 2 Pack 100% Brand New High Quality Rechargeable replacement Battery Integrated microchip prevents overcharging & lengthens battery life Charging at anytime has no memory effort Safeguard features against incorrect voltage, short circuit, internal overheating All Powerextra products come with a 30-day money back and a 12-month limited seller's guarantee against manufacturer defects from date of purchase, and 24 hours' friendly customer service!