Here’s an interesting find on my CZ, one that I didn’t expect:
I noted on this forum before that I saw a respectable power drain when my CZ is off, I found it’s about 1-2%/day (I use Rockbox but noticed the same drain before with the Sandisk FW). After a recharge, I was noticing that drain when off for the most part was zero and couldn’t figure out why. I noticed I’d removed my microSD card to load some music on it and never reinserted it. I left the card out and after a week, my battery was still at 100%.
I plugged in the card into my CZ, recharged the battery and then turned it on once a day to monitor the battery charge state. Sure enough, the 1-2% drain showed up again, it only happens with the SD card in there. My wife has a CZ and I’m starting the test with hers today to see if it’s just mine or in the CZ design. For the record, my card is a Sandisk-branded 32GB card (class 4), and to the best of my knowledge it’s not a knock off, my player is the 8GB CZ running the lastest Rockbox FW (previously I had the latest Sandisk FW in it).
Anyone else noticed this? SD memory is flash and doesn’t need power in an off state. For some reason though the CZ hardware has a power drain when a micro SD card is inserted, the FW doesn’t make a difference. I thought that quite peculiar.