How to know when to change battery in multimeter

On my multimeter, the voltage readings get inaccurate over time due to battery discharge. My meters all use 9 volt batteries.

How can I tell when to change out the batteries?

Thanks.

AK wrote:
> On my multimeter, the voltage readings get inaccurate over time due to battery discharge. My meters all use 9 volt batteries.
> 
> How can I tell when to change out the batteries?
> 
> Thanks.
> 
Sounds like time to change the multimeter instead!

Cheers

Phil Hobbs

(A fan of Tektronix DMM916s from eBay)

-- 
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com

On Fri, 9 Dec 2022 13:30:07 -0800 (PST), AK <scientist77017@gmail.com>
wrote as underneath :

>On my multimeter, the voltage readings get inaccurate over time due to battery discharge. My meters all use 9 volt batteries.
>
>How can I tell when to change out the batteries?
>
>Thanks.

Have you tried one of the lithium rechageable PP3 /  6F22 , they have
inbuilt BMS which switches out the battery for protection when it gets
to about 6V. The EBL ones do this. C+

On Friday, December 9, 2022 at 5:36:25 PM UTC-5, Phil Hobbs wrote:
>
> Sounds like time to change the multimeter instead! 
> 
> Cheers 
> 
> Phil Hobbs 
> 
> (A fan of Tektronix DMM916s from eBay) 

I have a couple HP3455A Voltmeters.