Charging question

[Neverlost99]

So if a charger has only a red and green light but you want to only charge to x% can you use the on bike display to see when you have hit the target ie 80%.

also if I have to leave my bike at at vacation house for six month should I leave battery at say 50% and not worry or take it with me and give it a monthly charge.

 

[indianajo]

No, you need to use a voltmeter. Some of them are built into throttles. The percentage to voltage tables can be accessed on the internet.
It is more usual to store batteries at 60-80% level. I've been storing at 80-90% and my battery is 4 years old with about 300 charges. Make sure not to charge at temperatures below freezing. I park my battery in the garage under a heat pad from October until May. Newer heat pads won't stay on more than 60 minutes.

 

[Neverlost99]

No, you need to use a voltmeter. Some of them are built into throttles. The percentage to voltage tables can be accessed on the internet.
It is more usual to store batteries at 60-80% level. I've been storing at 80-90% and my battery is 4 years old with about 300 charges. Make sure not to charge at temperatures below freezing. I park my battery in the garage under a heat pad from October until May. Newer heat pads won't stay on more than 60 minutes.

Thanks, living in Florida,I have the heat covered!

 

[AHicks]

I'm a snowbird with a pair of bikes at each end (wife and I both ride). To prepare for the 6 month storage they say to drain (ride) the batteries down to 50-60% capacity. I've never done the math, but I figure I'm good at somewhere between 46 and 49 volts. I'm assuming it's nothing exact! I remove the batteries from the bike to eliminate any potential for residual drain (like a clock for instance), and set them on the bench. Just returned to a pair of bikes that were left 6 months ago at about 49 volts - and guess what? They're STILL 49 volts! No charge needed to go for a rather chilly ride (as compared to the 86 degree weather we left last weekend). -Al