d8veh wrote:Use the switch for tempory stops - like when you're shopping or in the bar, but don't leave it like that for a long time because there's still a bit of drain from your battery. If you're going to leave it over-night or longer, it's best to disconnect thr main wires to the battery.
This kind of piqued my curiosity when I read it, as I don't customarily disconnect my battery, well, ever.
I just went outside and measured the current drawn from the battery with the controller connected but switched off. It's hard to get a stable reading at such low rates, but I saw between 4 and 6 ma of current. We'll average it to 5ma.
(For reference, this is a 36v SLA pile going into an EB312 controller. No, this isn't my normal battery- I'm waiting on a new 52v LiFe pack from Cell_Man.)
At 5ma discharge, you'd lose 120 milliamp-hours per 24 hour period, or exactly 1% of a 12Ah battery.
A more typical overnight rest for my bike would be about 11 hours (the difference between when I disconnect the charger from the battery at 8pm and when I get on it at 7am to ride to work. In that time, I'd lose 55 mah, or two-thirds of one percent of my total charge.
I'm going to go ahead and continue leaving the battery hooked up at night.
The concept of "average" requires that 50% of the population be below it.