Replace initial Part number: 2037082-001, 2039944-001, M2823, M2823-O
Battery Details: Li-ion, Volts: 7.4V, Capacity: 4500mAh / 33.30Wh. Commodity specification: 112.70 x 79.70 x 23.80 mm, Weight: 395.0g.
Perfect substitute for original battery.
Multiple Protection: Built-in multiple circuit protection (over-charging, over-current, over-voltage, short-circuit, high-temperature protection).
Worry-free service: 30-day money back guarantee and 12-month warranty for any quality issue, 24*7 email support.