Always entertaining replying to your own posts :-/ I thought I'd get some new batteries after deciding to assume that a commercially bought battery pack was likely to be 2 to 3 times worse than one I built myself.
It turns out I was correct - the battery stats indicate a dead battery-pack... Back in early 2011 the recipe I followed was, I think, here: http://cms.diodenring.de/de/electronic/microcontroller/92-squeezebox But, alas not longer... But, thanks to the Way Back When Machine, it can be resurrected: https://web.archive.org/web/20161003145259/http://cms.diodenring.de/de/electronic/microcontroller/92-squeezebox And, thanks to the insidious search engine, it can be translated: https://translate.google.com/translate?sl=auto&tl=en&u=https%3A%2F%2Fweb.archive.org%2Fweb%2F20161003145259%2Fhttp%3A%2F%2Fcms.diodenring.de%2Fde%2Felectronic%2Fmicrocontroller%2F92-squeezebox The only bit I got for that was the thirmistor: https://uk.farnell.com/avx/nb12k00103jbb/thermistor-ntc-10kohm-5-0805/dp/1672286?ost=1672286&krypto=zbVoWxUe6Ru2bUA4ipnb3Dk0BXKKMYC26RS3cKtVp9xt2DmaaPoKyUokVARevhS8VTuaEloEkQlEF4W95%2Bhmvw%3D%3D&ddkey=https%3Aen-GB%2FElement14_United_Kingdom%2Fsearch# However, pulling apart the CS Cameron Sino 2000mAh battery I discovered some other goodies - a couple of resistors attached to the monitoring taps, a thermal cut-out (70 degrees) and some sort of bimetallic thing - see attachments. I'm curious to know what the bimetallic thingy is, any ideas - it sits between the furthest most battery terminals from the main power supply? In the end, I decided to reuse the whole wiring loom from and bits from the old battery back - figuring the makers of that looked like they knew what they were doing - interestingly, after breaking the individual cells out of the old pack, I've been able to re-use them all, my charger indicating they're all still good. As I was doing a diy battery pack because the commercial ones seemed inferior to the last one I built, I went for the best batteries I could find: Eneloop PRO AA HR06 2500mAh NiMH at about £3 each from ebay. I've just run down the new pack from it's first full charge and - although I didn't remember to record the start time accurately - they seem to have run well over 12 hours - perhaps even 18 - I'll measure more carefully and report. As I said, photos attached.2717827179271802718127182 +-------------------------------------------------------------------+ |Filename: IMG_20190409_143139.resized.jpg | |Download: http://forums.slimdevices.com/attachment.php?attachmentid=27182| +-------------------------------------------------------------------+ ------------------------------------------------------------------------ pseud's Profile: http://forums.slimdevices.com/member.php?userid=41902 View this thread: http://forums.slimdevices.com/showthread.php?t=110371
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