Flat battery?

**mattian** · 31st December 2011, 14:52

like a dumb-arse I let my battery go flat because I forgot to swtich of the ignition (we'll call it a middle aged moment)
Just wondering, is it possible to roll start the bike? When we were kids and we had this problem we just used to roll it down the road in gear, let the clutch out and she would start like that.
Not being very clever about how these things work would just like to know if its gonna do the trick?
Suzuki 650 Gladius.

**Madness** · 31st December 2011, 14:54

Should be fine. Be thankful it's a "middleweight"

**mattian** · 31st December 2011, 15:05

cheers mate. heavy enough though, if it doesnt work to be stuck at the end of the driveway

**Madness** · 31st December 2011, 15:12

Key on, 2nd gear, clutch in. Mind your footing - it's bloody wet out there!

**slofox** · 31st December 2011, 15:13

Originally Posted by mattian

like a dumb-arse I let my battery go flat because I forgot to swtich of the ignition (we'll call it a middle aged moment)
Just wondering, is it possible to roll start the bike? When we were kids and we had this problem we just used to roll it down the road in gear, let the clutch out and she would start like that.
Not being very clever about how these things work would just like to know if its gonna do the trick?
Suzuki 650 Gladius.

I did that to my SV by leaving the parking lights on. I could NOT bump start it because there was not enough juice to work the fuel injection system. Fortunately I had a battery charger to hand. Took a few hours but.

**mattian** · 31st December 2011, 15:15

thanks guys. Will try both. if the other doesnt work

**mattian** · 2nd January 2012, 10:02

so ive been looking at some re-charging kits. The one I have my eye on says that it charges at the rate of 2500 mAmps an hour. What are mAmps? is that 2.5 Amps?
My handbook says that the battery should not be charged more than 5 amps per hour.

http://www.supercheapauto.co.nz/onli...09#Description

**sleemanj** · 2nd January 2012, 10:30

Originally Posted by mattian

so ive been looking at some re-charging kits. The one I have my eye on says that it charges at the rate of 2500 mAmps an hour. What are mAmps? is that 2.5 Amps?
My handbook says that the battery should not be charged more than 5 amps per hour.

http://www.supercheapauto.co.nz/onli...09#Description

milli = thousandths, 2500 thousandths of an amp = 2.5 amps

Any modern consumer charger will be fine assuming you have a plain old lead-acid battery.

The warehouse have the same, cheaper.
http://www.thewarehouse.co.nz/red/ca...581?SKU=456174

**mattian** · 2nd January 2012, 10:34

Aha ! Thankyou Mr. Sleemanj

**bsasuper** · 2nd January 2012, 18:41

Its best to charge motorcycle batterys at ONE amp, takes a bit longer though.

**neels** · 2nd January 2012, 19:25

Originally Posted by bsasuper

Its best to charge motorcycle batterys at ONE amp, takes a bit longer though.

Pretty much on the money, as a general rule lead acid batteries should be charged at 1/10 of their Ah rating, most bike batteries would be somewhere around 10Ah

**dangerous** · 2nd January 2012, 19:32

Originally Posted by mattian

so ive been looking at some re-charging kits. The one I have my eye on says that it charges at the rate of 2500 mAmps an hour. What are mAmps? is that 2.5 Amps?
My handbook says that the battery should not be charged more than 5 amps per hour.

http://www.supercheapauto.co.nz/onli...09#Description

to be honest IMO... no, ok for ya car but I would reconmend a trickle feed maintainer/charger cost a bit more but then price a decent battary up, a maintainer can be left on whenever the bikes not being used, great for long periods of non riding.

push starting, hmmm jap stuff aint so bad but you do need to watch for power serges that can fry the ECU, same goes for jump starting.

Neels... is a lead acid what you would call the dry cell come jell battarys of today?

**DEATH_INC.** · 2nd January 2012, 20:02

Be careful with the zookie, I jump started My old gixxer, and it couldn't cope with the dead flat battery and tried to melt the reg/rec and didn't put any charge into the battery.

**p.dath** · 3rd January 2012, 07:46

Originally Posted by Madness

Key on, 2nd gear, clutch in. Mind your footing - it's bloody wet out there!

+1. That's how to bump start.

**mattian** · 3rd January 2012, 09:13

Originally Posted by p.dath

+1. That's how to bump start.

ok so I've disconnected the negative terminal but these pricks that installed my new battery have tightened the screw on the positive terminal so tight its not budging ! to the point where i've almost burred the head of the screw trying to undo it.

Just wondering. Is it ok to try and charge the battery with the positive terminal still connected?

Update : Dont panic !!!!! I got it.