I have always disconnected the earth and then charged up.
No problems to date
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| Quick question on Recharging battery https://www.ausmini.com/forums/viewtopic.php?f=2&t=42728 |
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| Author: | Davo111 [ Fri Jun 06, 2008 10:48 am ] |
| Post subject: | Quick question on Recharging battery |
Do you have to disconnect the positive lead from the battery to connect it to a battery charger or can you just put the alligator clips on the terminals and let it charge in its own time. |
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| Author: | awdmoke [ Fri Jun 06, 2008 11:04 am ] |
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Just connect it up & charge away. Do not try to start the car until you have disconnected the charger or you can overload it. |
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| Author: | Davo111 [ Fri Jun 06, 2008 11:07 am ] |
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Thanks mate, I wasn't too sure with the EFI set up, thought it may upset the computer thingie.... Thanks again.... |
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| Author: | MiniBob [ Fri Jun 06, 2008 1:52 pm ] |
| Post subject: | |
I have always disconnected the earth and then charged up. No problems to date
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| Author: | Mick [ Fri Jun 06, 2008 2:21 pm ] |
| Post subject: | |
It's only a problem if the car is taking a drain from the battery that is greater than the charge current available from the transformer. Otherwise charge away. Disconnecting the positive (or negative terminal for that matter) is only perhaps imprtant if you are leaving the car for a long while without being used. It will stop the charge leaking away if there is a immobilser or clock or radio fitted. |
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| Author: | Morris 1100 [ Fri Jun 06, 2008 7:52 pm ] |
| Post subject: | |
When you charge a battery it can give off hydrogen gas. If you hook up the battery terminals after it has been charged it can cause a spark. 
If you leave it hooked up the only spark you have to worry about is when you disconnect the charger. So turn the charger off at the wall before removing the alligator clips. |
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| Author: | Mini Mad [ Fri Jun 06, 2008 8:00 pm ] |
| Post subject: | |
Would a drycell battery give off hydrogen as well? |
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| Author: | drmini in aust [ Fri Jun 06, 2008 8:02 pm ] |
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Morris 1100 wrote: When you charge a battery it can give off hydrogen gas.
If you hook up the battery terminals after it has been charged it can cause a spark. If you leave it hooked up the only spark you have to worry about is when you disconnect the charger. So turn the charger off at the wall before removing the alligator clips. I never hook the charger onto the battery in the boot- I find it easier to lift the bonnet and hook it onto the battery cable lug at the solenoid, and clip the [-] to a head stud. No hydrogen getting sparked then. 
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| Author: | Morris 1100 [ Fri Jun 06, 2008 8:04 pm ] |
| Post subject: | |
Mini Mad wrote: Would a drycell battery give off hydrogen as well? Dunno, I suppose you could sit a lit candle on the top of it while you are charging it.
(It is a joke. I am kidding, Oh come on now I didn't really expect anyone to actually be silly enough to try it... Oh well I know there is the usual idiots but they don't read technical threads anyway...) |
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| Author: | Morris 1100 [ Fri Jun 06, 2008 8:05 pm ] |
| Post subject: | |
drmini in aust wrote: Morris 1100 wrote: When you charge a battery it can give off hydrogen gas. If you hook up the battery terminals after it has been charged it can cause a spark. If you leave it hooked up the only spark you have to worry about is when you disconnect the charger. So turn the charger off at the wall before removing the alligator clips. I never hook the charger onto the battery in the boot- I find it easier to lift the bonnet and hook it onto the battery cable lug at the solenoid, and clip the [-] to a head stud. No hydrogen getting sparked then. 
I am not use to batteries in the boot anymore. I have mine under the bonnet where it belongs! |
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| Author: | gafmo [ Fri Jun 06, 2008 9:28 pm ] |
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funnies thing happen to me the last weekend I have always disconnect the Battery from the car and charged it seperate to the car
Untill I saw drmini in aust charging up Haha 
Stuff programmingthe Head Unit of the Stereo again
These simple thing are simply fixed when you see someone else doing it
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