Solution
IF the motherboard battery is round, it's easy to pop out. Most of the round ones were lithium cr2032, which is available at some targets or walmarts. If you find it on the motherboard, just gently pop it out by bending the tab slightly with a plain flathead screwdriver until it pops out.
IF the motherboard battery is round, it's easy to pop out. Most of the round ones were lithium cr2032, which is available at some targets or walmarts. If you find it on the motherboard, just gently pop it out by bending the tab slightly with a plain flathead screwdriver until it pops out.
 
Solution