Quote from: nobby on 11 April, 2018, 07:50:40 amI've been told that these batteries don't imprint and you can charge them any time whatever the residue power left isThis is true. Memory effect was mostly a NiCad and to a lesser extent NiMH thing.Quoteand that they should be allowed to run down completely and recharged to full about every three months.Not an inherent requirement of the battery, but might be needed to calibrate the battery-management electronics (so it knows how to estimate the battery capacity). If it tells you to do it in the manual, then there's probably a good reason. If not, I wouldn't bother unless I wanted to measure the total capacity of the battery (which will slowly decline over its lifetime).The general rule with lithium-ion batteries is that they really don't like to be deeply discharged. Somewhere in the electronics will be some logic that stops the system drawing power when the battery reaches a minimum safe voltage, so (other than concerns about range or not having power for lights or whatever) you don't have to worry about running them flat in use. Since there's a small amount of self-discharge and probably quiescent current from the battery management circuits it will continue to discharge below this point if left for long periods (weeks) in a discharged state. On that basis, the rule of thumb is if in doubt, recharge. Certainly charge the battery before leaving it unused for long periods.
I've been told that these batteries don't imprint and you can charge them any time whatever the residue power left is
and that they should be allowed to run down completely and recharged to full about every three months.
Quote from: Kim on 11 April, 2018, 02:30:26 pm On that basis, the rule of thumb is if in doubt, recharge. Certainly charge the battery before leaving it unused for long periods.I think that last bit isn't QUITE true - they store best when partially discharged (and kept in a kind temperature range - usually cooler than a warm UK house, but check the spec). But certainly it's best to avoid letting them fully discharge This is why trickle chargers are good (even though they trigger my knee-jerk "WASTE OF MONEY" reflex!)
On that basis, the rule of thumb is if in doubt, recharge. Certainly charge the battery before leaving it unused for long periods.
Quote from: mattc on 11 April, 2018, 04:54:13 pmQuote from: Kim on 11 April, 2018, 02:30:26 pm On that basis, the rule of thumb is if in doubt, recharge. Certainly charge the battery before leaving it unused for long periods.I think that last bit isn't QUITE true - they store best when partially discharged (and kept in a kind temperature range - usually cooler than a warm UK house, but check the spec). But certainly it's best to avoid letting them fully discharge This is why trickle chargers are good (even though they trigger my knee-jerk "WASTE OF MONEY" reflex!)The chap who sold me my motor and battery (Andy at Woosh Cycles, Southend) advised me to discharge the battery about a third if leaving it standing for awhile. A third being about 20 miles of use.
Kim, you are very bad!
Well that's the more blunt way of putting it but as usual he's dead right.
Draw a 130 mile circle from Windsor and work out if you're safe. Or not . . .
Does anybody else find it scary that Chris now has an effective range of 130 miles?
^ This woman knows what she's talking about.
Some pictures of the electric assistance system https://photos.app.goo.gl/9sgdkvwcKGQdR3Tq8.
Quote from: Polar Bear on 23 April, 2018, 08:46:19 pmDoes anybody else find it scary that Chris now has an effective range of 130 miles? Chris has always had a range of 130 miles. The power has just cut the time it takes.
Quote from: cycleman on 01 May, 2018, 01:13:14 pmSome pictures of the electric assistance system https://photos.app.goo.gl/9sgdkvwcKGQdR3Tq8.Good stuff. Is that the ICE battery mount, or has someone been molishing?
FYI @Nobby. The batteries are supplied by Cyclotricity. I've linked to the actual unit supplied, they retail £450 each. In this installation we hard wired the battery carrier to the motor. Soldered joints make for fewer connection problems.
Quote from: Torslanda on 01 May, 2018, 03:17:26 pmFYI @Nobby. The batteries are supplied by Cyclotricity. I've linked to the actual unit supplied, they retail £450 each. In this installation we hard wired the battery carrier to the motor. Soldered joints make for fewer connection problems.Thanks Torslanda that's half as much again as mine in power and price
Quote from: nobby on 01 May, 2018, 04:41:18 pmQuote from: Torslanda on 01 May, 2018, 03:17:26 pmFYI @Nobby. The batteries are supplied by Cyclotricity. I've linked to the actual unit supplied, they retail £450 each. In this installation we hard wired the battery carrier to the motor. Soldered joints make for fewer connection problems.Thanks Torslanda that's half as much again as mine in power and price Bring yours camping in Long itchington next week and we can all compare batteries P.S. fancy a cup of tea soon? We're living at clarion's parents' near Kinver.
Has he been naughtily bagging Strava segments?
If it looks like a loon and it sounds like a loon ...
