Regarding battery, we need know some key information, such as voltage,capacity,size,working current,peak current etc.....

If we get the wrong voltage battery, Battery can't supply the power to meet our electronic working requirements.

If we get the small capacity battery, our electronic just working for several minutes.

If we get the wrong size battery, our battery can't fit the volume we have.

If we get the wrong working current, our battery can't supply the current, our electronic can't move on.

If we get the wrong peak current, we can start our electronic or burn it.