It is genuinely difficult to determine if a battery will suffice with a recharge without the proper knowledge. Our technicians basically rely on the age of the battery, its appearance and how long it has been put to use. Older batteries will possibly need to be replaced, but this is not always the case. The first thing we do when trying to make this determination is to recharge the battery. If it holds a charge, then it will probably be good to go. However, to rule out any potential risks it may be in your best interest to replace the battery.