Products > Test Equipment
How do you protect your handheld meters from battery leakage?
<< < (9/10) > >>
alm:
In my experience things not working on NiMH batteries has become the exception. The only place I use alkaline batteries these days is in hostile environments (like bike lights that get exposed to the elements) or in very low drain devices where the hassle of recharging is not worth it for me (remotes and clocks). All cheap things that I wouldn't mind replacing if they leaked. I'm sure NiMH batteries would work fine, but either they would wear out faster or I would have to take the clock from the wall more often.
BillyO:
I just did a little testing WRT to my Brymen 726.

It shows a low battery indication once the voltage drops below 3.7V  That's about 1.23V per cell which does not bode well for using NiMH batteries.

I raised the voltage up to 5.1V and it did not produce any indication that that was an issue.  However, the only two Energizer "AAA" Litiums I have measure at 1.85V each!  That would be 5.55V for the pack.  I'm a little reluctant to test that high.

The current alkalines have been in it for a year and are now at 1.48V - so I replaced them and will use thesm for non-critical use.

Some questions come to mind.

1a) Has anyone tried the BM726 with NiMH cells?  b) How long do they work before a recharge is required?

2) Has anyone tried Lithium batteries in this unit?
wraper:

--- Quote from: Gary350z on September 21, 2022, 06:18:50 pm ---I just renewed my supply of Energizer Ultimate Lithium AA batteries.

The current price is $3 USD per cell. :o
After recovering from the shock, I Googled why they cost so much now. Sources say electric vehicle production is driving up the cost of lithium.
Prices for lithium have increased 438% this year, according to Fortune media.

I may have to see if the low voltage (1.2V) of my Eneloop batteries will work in my application.

--- End quote ---
It's beyond me why anyone would pay that for a single use cell. Eneloop in disguise like IKEA LADDA or Amazon Basics cost about $1.5-$2 per cell, and often even cheaper when there is a deal.
David Hess:

--- Quote from: wraper on September 21, 2022, 08:46:15 pm ---
--- Quote from: Gary350z on September 21, 2022, 06:18:50 pm ---I just renewed my supply of Energizer Ultimate Lithium AA batteries.

The current price is $3 USD per cell. :o
After recovering from the shock, I Googled why they cost so much now. Sources say electric vehicle production is driving up the cost of lithium.
Prices for lithium have increased 438% this year, according to Fortune media.

I may have to see if the low voltage (1.2V) of my Eneloop batteries will work in my application.
--- End quote ---

It's beyond me why anyone would pay that for a single use cell. Eneloop in disguise like IKEA LADDA or Amazon Basics cost about $1.5-$2 per cell, and often even cheaper when there is a deal.
--- End quote ---

I have considered them several times over the years, but they always had too poor of a price per capacity.  They do have certain applications where they have no substitute like operating at extreme cold.
robert.rozee:
has anyone tried a single 14500 size Lithium LiFePO4 rechargeable (nominal 3.2v) in place of 2xAA cells in a handheld meter? it would slot into one of the AA locations, with a shorting bridge in the other - this would only work if the meter did not require a 1.5v tap.


cheers,
rob   :-)
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod