M12 Electric Tool battery 48-11-2420. COMPATIBILITY: Compatible with Milwaukee 48-11-2440 48-11-2402 48-11-2411. Compatible with Milwaukee Electric Tool battery 48-11-2420 M-12. Battery Type: Li-ion. Built-in shock absorbing :features protect the battery.And built-in integrated microchip prevents overcharging and other malfunction to prolong battery life.
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