Not sure what charge is left in my battery?

[it is i footpump]

Hi all I have a number of Ebike batteries, today used a 10.4 ah 36v bottle battery with my ebike which has 350w rear moter wheel. Did 19 miles 3 -4 power settings , some throttle.
LCD 3 display shows 1 -2 bars out of 4.

Pressing button on top of battery shows 3 green lights out of 5. Voltmeter reads 38v.
When I used this battery last 2 years. Range about 25-30 miles with tdz2 250w summertime.
So not sure what is actually left in my bottle battery at reading 38v

Any ideas. Thank you

 

[sjpt]

38v probably has quite a bit left. The problem will be as soon as you drive the motor you will get voltage sag, maybe down to 36 or a bit lower. Was the LCD showing 1-2 bars as you were actively riding, or at rest?

 

[Nealh]

38v is about 60/65%.

 

[it is i footpump]

Thanks all. Not sure if it was showing 1 -2 bars at rest or moving, did a very short ride and voltage dropped to 34v on meter so recharged