Charger that attempts rejuvenation on Sony InfoLithium NP-FM series batts?

[brassplyer]

I have a Sony Digital8 that takes three-contact InfoLithium NP-FM series batteries such as NP-FM70. Is there a charger compatible with these that will attempt rejuvenation cycles?

While I'm at it, I saw one YouTube video where they use a pair of 18650 rechargables to replace the original cells with the caveat that doing this can create a fire hazard though after doing this it did fire up the camera. Anyone have insight regarding this?

Thanks.

[GAhere]

Rechargeable lithium batteries are not "rejevenationable"..

Several factors are involved with Lithium batteries.

1 Lithium batteries to make them somewhat "safe" are required to have a BMS (Battery Monitoring System). The BMS is a small chip which is built into the battery pack that monitors multiple parameters such as charge/discharge current, charge voltage, battery cell voltage, cell temperature. Exceed ANY of those parameters and the BMS automatically will disconnect the cell from the terminals and some parameters like cell voltage and to high charge/discharge current may trip the BMS into permanent state of disconnect.

2 Lithium batteries unlike Nicad or Nickle Metal Hydride don't respond nicely to force feed them in hopes of bringing them back to a usable state.. Even Nicads and Nmh batteries don't rejuvenate all that much back to a useful state, bad is bad, wornout is wornout and what capacity you get is very minimal at best.

3 Lithium batteries should not be played with, misuse (attempts to rejuvenate comes to mind as misuse) can set fire to your device, home or yourself, tread very lightly with a lot of respect as a these batteries can pack a lot of heat. Not unusual for Lithium fires to range from 392F (200C) to 1832F (1000C).. Basically reaching meting point of many metals..

If you really insist, force charge bare lithium cell (you would have to bypass the BMS chip) OUTDOORS, on concrete far, far away from anything remotely flammable.. If you manage to get it working, myself I wouldn't trust it and would recommend storing and using it OUTDOORS and not hold the device in your hands..

The safest thing to do, is simply buy a NEW battery pack, these are not toys.

You can buy NEW aftermarket batteries starting at $20 US on Amazon, not worth the fire hazard in my opinion to force feed Lithium batteries.

[brassplyer]

Rechargeable lithium batteries are not "rejevenationable"..

Several factors are involved with Lithium batteries.

1 Lithium batteries to make them somewhat "safe" are required to have a BMS (Battery Monitoring System). The BMS is a small chip which is built into the battery pack that monitors multiple parameters such as charge/discharge current, charge voltage, battery cell voltage, cell temperature. Exceed ANY of those parameters and the BMS automatically will disconnect the cell from the terminals and some parameters like cell voltage and to high charge/discharge current may trip the BMS into permanent state of disconnect.

2 Lithium batteries unlike Nicad or Nickle Metal Hydride don't respond nicely to force feed them in hopes of bringing them back to a usable state.. Even Nicads and Nmh batteries don't rejuvenate all that much back to a useful state, bad is bad, wornout is wornout and what capacity you get is very minimal at best.

3 Lithium batteries should not be played with, misuse (attempts to rejuvenate comes to mind as misuse) can set fire to your device, home or yourself, tread very lightly with a lot of respect as a these batteries can pack a lot of heat. Not unusual for Lithium fires to range from 392F (200C) to 1832F (1000C).. Basically reaching meting point of many metals..

If you really insist, force charge bare lithium cell (you would have to bypass the BMS chip) OUTDOORS, on concrete far, far away from anything remotely flammable.. If you manage to get it working, myself I wouldn't trust it and would recommend storing and using it OUTDOORS and not hold the device in your hands..

The safest thing to do, is simply buy a NEW battery pack, these are not toys.

You can buy NEW aftermarket batteries starting at $20 US on Amazon, not worth the fire hazard in my opinion to force feed Lithium batteries.

Okay thanks.