Multimeter stopped displaying after replacing battery

[zillah]

Dear All

I have got a spare multi meter (secondary one) that was sitting on shelf for couple of years and today I switched one to check if battery is dead or not and it was displaying reading on LCD,,,,but I thought it is good idea to replace battery although it wasn't dead to avoid any feature leaking

I replaced old battery with 2 new batteries (yes new one and I checked voltage of it by using my primary fluke mutilimeter and their reading were 9.6V) but unfortunately multimeter not displaying anything on its LCD.

1-Battery terminal fit tightly on the snap connector and the snap connector is clean
2-I checked the continuity between the connector end and the soldered end on PCB for both red and black wires they were good
3-But when I did the reading on the soldered end of red and black wires was showing 1.54 V !!!! supposed to be same v as battery,,,,,,Do I need to remove the solder and solder it again ?

https://imgur.com/a/QoJua5W
 
Thx

[TUMEMBER]

The wires are "twisted" (stuck together) in the cap that comes with the battery. This is a fairly common problem with this type of connector. Slice open the plastic cap with a scalpel and inspect the wires.

[zillah]

I did it looks for me alright please see attached photo

[TUMEMBER]

Have you tried wiggling the wires while measuring continuity? Perhaps the wires are of poor quality and one isn't making an internal connection under the protective coating? Alternatively, resolder the battery (connector) and the PCB input. If that doesn't help, you've identified a more serious problem (dead solder on the PCB from stress).

[zillah]

Have you tried wiggling the wires while measuring continuity? Perhaps the wires are of poor quality and one isn't making an internal connection under the protective coating?

I did no loose connections

Alternatively, resolder the battery (connector) and the PCB input.

I will do that and see how it goes

[Ian.M]

The joint between the rivets holding the battery terminal clips, and the clips themselves often go  high resistance if the battery has leaked even a tiny bit.    As its got a fibre base, you can probably get away with scraping the edge of the rivets on the clip side and soldering them to their clips.