I bought a Serfas True 250 at a swap meet and of course get home and it won't charge up. Is there anyway to determine if the lithium ion battery is bad or if its the unit itself. It will be a bummer if it's just the battery and buying a new one will make the total value of the purchase not cost effective. I know "buyer beware". etc. and am prepared to chalk it up to lessons learned - but would like to troubleshoot it if I can.
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Thread: Serfas True 250 doesn't work
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