BATTERY QUERIESIan, I always charge my batteries four at a time, and I have the same type of rechargeables as you. Knowing how much you use your BC, I do not think you will have a problem with the spare set losing any of their charge. I know that the Springer recommendation is not to rely on the percentage available using rechargeables, but, if you assume that they start at around 80 percent and gradually decrease, it is a pretty good guide as to how much use you have left in your batteries. It is probably true though that you need to replace them when the percentage reaches say 20. I have recharged only partly used batteries, and have not noticed any problem, although I have not been doing this for long. I recall reading on a website recently about rechargeable batteries that it is no longer critical to totally discharge batteries before recharging them. I am sure there are those who know more on this subject than I do, but my understanding is that, unlike the old rechargeables, you can recharge the NIMH batteries at any time. If anyone knows more about this, then please tell us. David -----Original Message----- From: bookcourier-bounce@xxxxxxxxxxxxx [mailto:bookcourier-bounce@xxxxxxxxxxxxx]On Behalf Of Ian Macrae Sent: 15 March 2006 16:02 To: bookcourier@xxxxxxxxxxxxx Subject: [bookcourier] BATTERY QUERIES 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.