Another good test is charge up the battery, then set it aside for a few days. If the voltage drops quite a bit from the fully charged state - the battery is bad.
@MomentumProductions1992 Жыл бұрын
Some batteries have a smart BMS like the ones in drones. If that's the case the voltage will drop over a few days (Which is Normal).
@davidzeng96599 ай бұрын
Thanks.It is really helpful also your voice is clear and easy to understand.
@ismaelmoe7407 Жыл бұрын
Awesome!! Thanks !!
@laurapage90188 ай бұрын
There appear to be three contacts on the battery. Which two do you apply the probes to?
@sigityuda96485 ай бұрын
(+) and (-) contacts, because the other one usually for ground position
@JackJensenTrader2 ай бұрын
There's not danger when you connect probes to measure a device, so if you can't see a +/- label, just try them all until you get something close to what the voltage should read. Or at least, which would indicate that you're measuring some voltage.
@MiroAcronymity Жыл бұрын
Your video made me want to finally get a multimeter. One thing to note: A voltage that is under the nominal voltage (say nominal is 7.2 and the reading is 6) also means the battery is bad, correct? It doesn't have to be 0.
@MomentumProductions1992 Жыл бұрын
Hi there! I am glad you got one. If the battery is fully charged and the meter is reading only 6 volts instead of the nominal voltage, yes, you have a damaged battery pack.
@MiroAcronymity Жыл бұрын
@@MomentumProductions1992 thanks! My multimeter arrived yesterday and I'll be testing some batteries over the weekend.
@williamaungleyraud Жыл бұрын
Hey I have the same Harbor Freight multimeter 😎👍
@AlexanderCornel Жыл бұрын
Good to know!
@ltmn67014 ай бұрын
Thanks
@rghurst8 ай бұрын
My multi-tester has a "Battery Load Test" option that registers voltage but also shows a Good-Questionabe-Bad indication. One of my NP-Z100 batteries showed 7.6 volts, but a "questionable" status. When I put in on my charger, the charger doesn't even acknowledge it is connected? I guess it's done!
@MomentumProductions19928 ай бұрын
Try a different charger!
@rghurst8 ай бұрын
@@MomentumProductions1992 I actually tried three different chargers.
@skiphorniАй бұрын
I'm sorry. But you can't just put a batter on a multimeter. To test battery health you must put the battery under load. Can simulate this with the proper sized resister. Hundred ohms might be a start for a battery like this. Some multimeters have this capability. Not the Harbor Freight ones though. If these are "smart" batteries, all bets are off. Then it's not so simple.