I have recently bought a Uniross one hour charger and four double AA 25mAh rechargeable batteries primarily for use with my BC. I have the following questions about the batteries. The charger can charge all four batteries at a time but the BC only takes two. If I wanted to keep a pair on stand-by, how well do these batteries retain their charge when not inserted into a device to power it? What's the deal with charging this type of battery from less than fully discharged? Does doing this shorten their lives and decrease the amount of charge they will take? Any thoughts most welcome. http://www.bbc.co.uk/ This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this.