Battery Charging
- Thread starter B4ndit
- Start date
YES.
As long as you connect it directly to the battery..
As long as you connect it directly to the battery..
AberdeenAngus
Registered user
That's not exactly using it 'with' the Canbus now, is it Miff ?
But the pink haired one is essentially correct. You need to go straight to the battery. It won't work through the aux power socket.
Some folk fit secondary sockets direct to the battery for this purpose, and for connecting higher loads than the Canbus will allow.
Do a search plenty of info on here about this.
Bendy toy
Registered user
Miff may not be *exactly using it 'with' the Canbus* but a direct connection for charging is the most reliable way to be sure the battery is actually getting charged. There are lads of threads from folks with all singing all dancing canbus compatible chargers and flat batteries.
Keep it simple - Fit a charging plug direct to the battery and use good quality conditioning charger.
Keep it simple - Fit a charging plug direct to the battery and use good quality conditioning charger.
cocker
Registered user
so over winter is it ok just to use a 12 volt 4 amp battery charger, connected by crocodile clips straight to the battery, once a month or so, for a few hours, just to keep the battery topped up,
rather than buy all the expensive fancy canbus optimate stuff
rather than buy all the expensive fancy canbus optimate stuff
You really want something that charges at 10% of the battery capacity or less, so 1.2 amp/hours.
Charging at 4a/h risks boiling the battery up. You could connect the bike batter to a big (car) battery and charge them as a pair.
A normal Optimate or similar is a better option though. LIDL sometimes do one for £15.
Charging at 4a/h risks boiling the battery up. You could connect the bike batter to a big (car) battery and charge them as a pair.
A normal Optimate or similar is a better option though. LIDL sometimes do one for £15.
robb
Registered user
There is a very simple solution whether you have a canbus charger or not.
If you ride the thing every day it rarely needs charging
If you ride the thing every day it rarely needs charging
AberdeenAngus
Registered user
AberdeenAngus
Registered user
No no no
I'm guessing you mean in parallel. This is a bad idea. You should never connect up dissimilar batteries like this.
personally, i would never use croc clips with the battery in situ. too much risk of a tug on the wire pulling a positive clip into a position where it might short to the frame.
wire an accessory socket direct to the battery and charge via that. as a bonus, you get an accessory socket
Roymondo
Registered user
There appears to be some misunderstanding of the concepts involved here. Amp-hours (not Amp/hours) is a measure of a battery's capacity, *not* the rate at which it can be charged (or discharged). To talk of "charging at 4 Amps/hour" is meaningless.
And you should *not* connect dissimilar batteries "as a pair" as a means of limiting charging current. If the other battery is already fully charged, the charging current through the partially discharged one may well be even more than the charger's rated output...
Bendy toy
Registered user
Two lead acid batteries connected in parallel will always charge one of them (or discharge if you like) before the other one. If one is big and one is small, the smaller one will always try to do all of the work.
Amp Hours is the amount of charge the battery takes to reach fully charged.
1 amp for 10 hours = 10 Amp hours.
The energy available from the full battery is always less than the amp hours put in. If its discharged hard (as with a starter motor), it can be a lot less.
Lead acid should be charged at no more than 10% of its Amp Hour capacity, but ideally a lot less to prolong its life. Optimates and other conditioning chargers charge gently. When the battery is full they keep it topped up with a float charge which is not the same as a trickle charge.
A monthly blast with a high current will damage the battery.
http://www.batterystuff.com/kb/articles/battery-articles/battery-basics.html
Amp Hours is the amount of charge the battery takes to reach fully charged.
1 amp for 10 hours = 10 Amp hours.
The energy available from the full battery is always less than the amp hours put in. If its discharged hard (as with a starter motor), it can be a lot less.
Lead acid should be charged at no more than 10% of its Amp Hour capacity, but ideally a lot less to prolong its life. Optimates and other conditioning chargers charge gently. When the battery is full they keep it topped up with a float charge which is not the same as a trickle charge.
A monthly blast with a high current will damage the battery.
http://www.batterystuff.com/kb/articles/battery-articles/battery-basics.html
Similar threads
