Xtar VC4 refuses to charge?

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Garageboy
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Xtar VC4 refuses to charge?

Anyone experience this? My VC4 is a few years old and is acting up. I will put in a discharged battery, it’ll charge it for a few minutes – put in about 50-100mAh and stop telling me it’s full. Tested this with multiple batteries. Some times, I have to disconnect and reconnect power and it’ll charge, but it’s refusing to more often than not. It does this with both NiMH and Li Ion.

Thanks

Edited by: Garageboy on 11/08/2021 - 18:43
Correllux
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Try cleaning the contacts and ends of the cells with a pencil eraser and isopropyl alcohol and see if that fixes it.

Do the cells read the same voltage on a multimeter as what the charger says? Power supply is steady source and outputting what it should, jack connection to the charger is good?

Garageboy
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Contacts are clean, and my big 5 port 35watt Anker power brick works fine.

It freezes up time to time (will read 4.2v on the lcd, after I take the battery out) and I have to unplug and replug to get it to start charging

Correllux
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Well, I think I’d reach out directly to Xtar and see if they might have some input or perhaps a replacement even though it’s old (there’s always hope). If the basics for contacts/connections, supply and cabling, etc. check out good then it sounds like it’s the logic failing and for safety’s sake that makes it trash unless you can identify and replace a simple component on the board. Might bring it to their attention here in a PM or with a link to this thread on one of their various charger threads…may get a faster reply than trying to email directly as if often the case with overseas companies.

Garageboy
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Thanks – if they don’t, at least it was cheap

KalmJ
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I’m experiencing the exact same thing. VC4 that is approx 5 to 6 years old. Putting in batteries and it will go red for a second then back to green to say they are finished.
After taking them out and turning it on and off i can usually get it to work but it will occasionally stop after a couple hundred mah and I have to reset it again.
I was thinking it was almost time for a new charger.

d_t_a
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Could it be related to the USB-to-DC cable? I’m not sure if a cable that has become “loose” might also cause the issue or not.

Xtar sells replacement USB-to-DC cable. Although probably verify with Xtar first if that could be a possible cause.

stephenk
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I think if a li-ion charger lasts more than 3 years, you are doing well. My XTAR VP4 Plus DRAGON lasted 4.5 years until it refused to charge anything. Once they start to play up, it is time to get a new one for safety reasons.

aginthelaw
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ditto for my dragon

never fear shadows…it means a light shines nearby