Battery update...My search for batteries was needed because one of my NiMH cells died suddenly. I have long since stopped carrying spare AAs for my Garmin Etrex. I always recharge the cells before a long ride and they usually last 25+ hours on a charge. Only this time, they didn't! One of them died after just 3 or 4 hours of riding.
Here is some free advice, folks: Batteries can and do fail!
Second item of free advice: If your smart battery charger suggests that there might be a problem with a battery, believe it - don't just switch it off and try again later! (It charged the battery on my second attempt, but was obviously telling me the truth initially.)
I managed to get replacement batteries from Morrisons in Malton. They only had packs of 8, which was a pain because I rarely use standard batteries (NiMH rechargeables make far more sense). What was worse was being charged £8 for the pack - way over double the going rate! I'll carry 2 of them with me for backup on rides in future, though this the first rechargeable failure that I have had in years.
Probably knock off lookalikes.Battery update...
I am WELL peed off!!! I went to use 2 of those bloody Duracells in my wireless mouse yesterday and they were dead. I tried 2 more - dead. In fact, all of the bloody things are dead. Their use-by date is 2028 and I had never used the 6 that I hadn't used on this ride, and the 2 that I did use were only used to get me home!