09 Yamaha Ydre

[Volt_Ampere]

You need to measure pack voltage under load. Bad batteries can often show proper voltage at rest but sag way too much under load. The controller sees this sag and will eventually shut down to protect itself from damage.

[sutliff01]

Originally Posted by ojo

Ok, even cheaper batteries should work for more than 2mi... but when the app is saying "low voltage", it points direct to the batteries. So best thing you can do is a real battery check with a DVM (digital volt meter). First charge your batts. until charger shuts off... let the batts. rest 10 hours. With the DVM messure the pack voltage and the voltage of any single battery! Display the result here. You didn't answer the battery brand question also?

The batteries are Battery Master branded a local battery shop so I’m sure that they aren’t the greatest. But I’ll check them with a dvm when I get home.

[ojo]

Of course, a real check is "under load", but messuring in rest will show you, If the pack is really fully charged and If all batteries are on the same level...