Gear / Technical Help > Remote Power

Rechargeable batteries

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Fatah Ruark (aka MIKE B):
Could the rechargeables degraded to not put out enough power to keep the device happy? Measure the voltage on the suspect batteries.

Replacing with a "known good" set (aka new) might also be a good next step.

ts:

--- Quote from: Fatah Ruark (aka MIKE B) on June 01, 2022, 04:57:01 PM ---Could the rechargeables degraded to not put out enough power to keep the device happy? Measure the voltage on the suspect batteries.

Replacing with a "known good" set (aka new) might also be a good next step.

--- End quote ---

That's what I thought. I tried 4 sets of rechargeables at 8 batts per set and none would fire this up. All batts are relatively new. On the flip side I can throw in random alkalines and it fires right up.

vanark:
As far as I know, rechargeables are approx. 1.25V whereas alkalines are 1.5V (to start). Most devices are fine at 1.25V but apparently not your batteries are starting out a little less and your device does not like lesser voltage (is my guess.)

ts:

--- Quote from: vanark on June 01, 2022, 09:37:45 PM ---As far as I know, rechargeables are approx. 1.25V whereas alkalines are 1.5V (to start). Most devices are fine at 1.25V but apparently not your batteries are starting out a little less and your device does not like lesser voltage (is my guess.)

--- End quote ---

Yea that's the only logical explanation. It liked them for awhile though and that makes no sense. I see that Lithium AA rechargeables put out 1.5 volts. 8 with charger costs about the same as 8 Eneloops.

I wonder if something failed internally that allows the monitor to operate on a lower voltage.  :shrug:

ts:
Rather than mess around with buying more Eneloops (I have 20 already) I picked up some Tenovolt 1.5V rechargeable Lithiums. Problem solved! I guess my device frowns on less than 1.25 volts per battery and I probably have a few Eneloops that have dropped below that even when showing fully charged.

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