I think Johns link was trying to show a video but for some reason i cant upload a working link to it and all i got were ads .

I would hook up a variable power supply running to the positive and negative terminals and run it at the battery voltage via a 10 ohm 25 w resistor and give it a tickle – do it outside though just incase something goes belly up ! If things start getting hot turn it off ! The sensing circuit inside the camcorder is reading a voltage below its cut off threshold and won't recognise the battery until its voltage is above this .

Edited By XD 351 on 11/01/2019 04:36:49

Edited By XD 351 on 11/01/2019 04:39:23

Edited By XD 351 on 11/01/2019 04:41:08

Edited By XD 351 on 11/01/2019 04:43:20

The link to a Google search worked fine here, anyway try these:

One UK one state side.

**LINK**

**LINK**

I had read of this problem with Sony before.

Yes Youtube puts an adv in front of many videos, not a bug just a pain in the a…s

Regards
John

Edited By John McNamara on 11/01/2019 07:29:41

Li-ion batteries should not be discharged below a certain voltage otherwise permanent damage will result.

I used to work in IT and had lots of Li-ion phone batteries that would not charge, simple slution was to apply pulses of 12v to the battery by repeatedly tapping the 12v pos to the Li-ion pos.Once you get the battery above it's minimum, the original charger would take over.

you do this at your own risk of course.

I would get a replacement battery myself if it is for camera use, plenty of batteries on ebay.

never had a problem with 3rd party batteries on any of my cameras.

Brand I use is EXPRO, not the cheapest but good capacity and fully compatable.

If you can access the cells directly there are inexpensive charger modules that can safely bring them up to a voltage where the built in charger will work.

Another approach is repeatedly trying to charge, as if each time a small test charge is applied the battery may eventually recover.

Neil

John, how old was the article and was it for Li-ion or Nicad/Nimh. Apologies if you are already aware of the following, which isn't applicable to Li-ion;

My way for the latter was to charge up a capacitor bank and flash discharge/zap across the cell terminals, having established which one(s) in the battery pack were faulty.

This is for a different reason though; it's to fuse out the whiskers that can develop internally in each individual cell.

When charging, the charge current passes through the whisker, which effectively shorts out that NiCad cell. The surrounding cells charge up, but not that one. Zapping the cell with a short high current blast burns out the whisker, just like blowing a fuse, and the cell can once again accept charge.

Much safer than the other method I've read about where folks use a car battery to zap a cell; there's far to much reserve energy available there.

Bill