How long can the batteries hold their charge if I leave them on the shelf (shelf-life)?
At room temperature, NiMH batteries will self-discharge in around 30 to 60 days without usage (depending on environmental conditions). In other words, if you leave the batteries on the shelf for more than 30 – 60 days, you should recharge the batteries before using them. It is normal for batteries to be fully depleted of power after long term storage.
