[chbot] Have I killed my bot battery?

[Carl Ranson]

Seems I was correct.
I managed to kick start it by putting a couple of charged nicad's in 
serially to raise the voltage. The charger is slow enough to change 
state that i was able to connect the battery up before it shut down again.

Probably an idiotic way of doing it but it now seems to be charging so 
I'm happy.

Off to research low voltage cutout circuits so I don't get this again.
C

John Tiler wrote:

> perhaps. If its a 12V sla try a car battery charger on it, if you do....
> Pump it up a bit and then try using ur charger.
>
>
>
>
>> From: Carl Ranson <carl.ranson@paradise.net.nz>
>> Reply-To: chchrobotics@lists.linuxnut.co.nz
>> To: chbot <chchrobotics@lists.linuxnut.co.nz>
>> Subject: [chbot] Have I killed my bot battery?
>> Date: Wed, 07 Mar 2007 21:35:21 +1300
>>
>> So I left my bot's electronics running on the bench overnight and my
>> battery is down to 7 volts (its a 12v SLA)
>>
>> I've just put it on the charger and nothing happened.
>>
>> The charger I have is a jaycar one (http://tinyurl.com/ytlhkx) and I
>> note that many of the chargers on their website have a note "These
>> chargers will not charge a totally flat battery".
>>
>> Is it possible that 7v is low enough to make the battery non-detectable
>> to the charger? Is there any way to trick the charger into detecting it?
>>
>> thanks team.
>> C
>>
>>
>>
>>
>> _______________________________________________
>> Chchrobotics mailing list
>> Chchrobotics@lists.linuxnut.co.nz
>> http://lists.ourshack.com/mailman/listinfo/chchrobotics
>
>
> _________________________________________________________________
> With tax season right around the corner, make sure to follow these few 
> simple tips. 
> http://articles.moneycentral.msn.com/Taxes/PreparationTips/PreparationTips.aspx?icid=HMFebtagline 
>
>
>
> _______________________________________________
> Chchrobotics mailing list
> Chchrobotics@lists.linuxnut.co.nz
> http://lists.ourshack.com/mailman/listinfo/chchrobotics
>