carnage
Enlightened
What size resistors do I need to do a load test with AAA,AA,D size batteries?
What size resistors do I need to do a load test with AAA,AA,D size batteries?
I use an "All-Sun BT21 LCD Display Digital Battery Tester about 20-120mA Digital Battery Instrument" it has 3 load settings, you can buy them for around $12, slightly to small to test an 18650 but i have heard it can be modded.
https://www.banggood.com/All-Sun-BT...0mA-Digital-Battery-Instrument-p-1013031.html
John.
Do you know how accurate they are? Have you tried it against a DMM reading?
A DMM does not load a battery while testing, Also you cannot disable the load on this battery tester, So i cannot compare like for like.
My DMM shows an Eneloop AA at 1.3305v
The battery tester with low load = 1.33v
med load = 1.33v
high load = 1.31v
John.
I was watching a Youtube video where a guy was using a resistor to put a load on the battery to measure the draw. People was replying that he was using a resistor that was to low to measure current drain.
CPF member HKJ will most likely know.
John.