ML1220 rechargeable batteries will sustain typical 3 volt dc charged @ rated 17maH.
This is a Lithium Ion battery that would need to be soldered on to the logic board/motherboard of a Lenovo G450 series notebook to maintain the date/time and boot sequence
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Suresh K.
Very impressed with the quality and fast delivery. Will shop here again.
4 days ago
Ayesha M.
The product exactly matches the description. Very satisfied with my purchase.