How to test battery of uninterruptible power supply (UPS)?
There are many tools for battery testing, but most of them are suitable for big batteries only, of 20 - 100 Ah capacity. UPS battery has only 7, 9 or 18 Ah.
Elactronic test tools just simulate load testing, so are not aways accurate.
I test batteries using multimeter and 35W 12V halogen bulb as load.
