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    52V battery now 20V - dead?

    My LiFePO4 battery abruptly lost charge, on the road yesterday. When I got back it was 20V or so, and the charger won't light up and start charging. Dead? The long story: I've recently had connection problems, such that everything drops - CA3, throttle etc. Sometimes comes back by itself...
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    Government incentives

    The local newspaper reprints a NYTimes article about how e-bikes are happening. (https://www.nytimes.com/2021/11/08/business/e-bikes-urban-transit.html.) Partly fluff, partly an ad for a 750W styling cruiser for hipsters, but I notice he mentions, England is handing out tax credits. There has...
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    home remodeling contractors residential construction near me

    Thanks, I think you have put your finger on my problem, right there!
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    US National Parks Electric Bicycle Policy Memorandum

    https://www.nps.gov/subjects/biking/ebike-regulations.htm A couple selected items. First, in the unintended humor category: (It's my impression that to the extent a "750 watt motor" is a thing, it's the very same thing as a 749 watt motor.) The interesting wrinkle on the 3 class system...
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    18% regeneration?

    Actually 18.1%. That's what Cycle Analyst reported, after a little 11 mile round trip errand. Does that seem suspiciously high, or just auspiciously high? 16 mph avg speed, 11 Wh/mile, 2.53 Ah down, 2.99 Ah "forward". Fairly high, upright recumbent, no fairing, direct drive hub motor from...
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    regenerative braking in winter

    I was out this morning in weather that might seem mild to many of you, but cold enough to affect my battery performance. I know I should not [fast-]charge my battery when it's freezing cold. What about regenerative braking? Is that a light enough charge that it's harmless, or to put it...
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    CA3 LiFePO4 state of charge

    Recently set up, ebay 16 cell LiFePO4 battery and Cycle Analyst 3. "State of Charge" indicator says the battery is full, when it actually should be down to about 40%. Questions: 1. The way I read this, the computer would need to keep track of the battery's ongoing state for these...
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