I don't know how the percentage of discharge thing works either, but when
I put the battery on my charger it said it was 40% charged, took 3 hours to
charge at the fastest setting, so a 12 volt battery is 60% gone when at
11.88 volts.

"Jeff Strickland" <crwlr@verizon.net> wrote in message
news:6R8Qh.2120$WL4.809@trnddc04...
>
> "Lon" <lon.stowell@comcast.net> wrote in message
> news:CZSdnbn6fuCMw43bnZ2dnUVZ_oninZ2d@comcast.com. ..
>> Jeff Strickland proclaimed:
>>
>>>
>>> "Mike" <mik@localnet.com> wrote in message
>>> news:SfOPh.5849$B25.1882@news01.roc.ny...
>>>
>>>>
>>>> "Jeff Strickland" <crwlr@verizon.net> wrote in message
>>>> news:szAPh.368$jZ3.275@trnddc06...
>>>>
>>>>>
>>>>> "Mike" <mik@localnet.com> wrote in message
>>>>> news:ClwPh.5969$ya1.4904@news02.roc.ny...
>>>>>
>>>>>>
>>>>>> "Greg" <greglc84@hotmail.com> wrote in message
>>>>>> news:p_uPh.4647$aG1.3248@pd7urf3no...
>>>>>>
>>>>>>> I read the rest of the replies, mostly argueing about resistence,
>>>>>>> anyway Mike I cleaned all connections on bat. solinoid, and alt.
>>>>>>> only one I didn't clean was one down at starter, and starter and bat
>>>>>>> cables are about a year old.
>>>>>>> Bill mentioned at some point bat. was disconnected while running,
>>>>>>> that didn't happen, but when I thought the bat. was dead the other
>>>>>>> day I used my battery charger which has a setting for 70 amps to
>>>>>>> start a vehicle, which I used and it arced when disconncting it. I
>>>>>>> replaced everything on engine when I put a rebuilt in 1 1/2 years
>>>>>>> ago, all but alt. Am I now ready for that?
>>>>>>
>>>>>>
>>>>>>
>>>>>> First start with a known good battery. A fully charged battery
>>>>>> should read around 12.65 volts. The voltage reading you got when
>>>>>> ckecking your battery, 11.96, indicates a battery that is 80%
>>>>>> DISCHARGED.
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> 80% discharged!? No, how about 20% discharged?.
>>>>>
>>>>> Actually, 11.96 is 94.5% of 12.65. This makes the discharge rate to be
>>>>> less than 6%.
>>>>
>>>>
>>>>
>>>> Actually about 11.88 is 100% discharged so you need to redo your math.
>>>> Like I said before, a voltage reading of 11.96 indicates an 80%
>>>> discharged battery.
>>>>
>>>
>>> Sorry, I don't follow you. Please 'splain me it.
>>>
>>> I'm pretty sure my cars start easily with 11.88 vDC. It's not even close
>>> to being fully discharged.
>>
>> Open circuit as opposed to starting load voltage. 9 volts is enough to
>> start as long as it is available at loads of 150 amp or so.
>
> I know that. I don't know why anybody would state that 11.88 volts is a
> fully discharged battery. My logic says that such a charge would be almost
> full as opposed to almost empty.
>
>
>
>
>
>

 

I don't know how the percentage of discharge thing works either, but when
I put the battery on my charger it said it was 40% charged, took 3 hours to
charge at the fastest setting, so a 12 volt battery is 60% gone when at
11.88 volts.

"Jeff Strickland" <crwlr@verizon.net> wrote in message
news:6R8Qh.2120$WL4.809@trnddc04...
>
> "Lon" <lon.stowell@comcast.net> wrote in message
> news:CZSdnbn6fuCMw43bnZ2dnUVZ_oninZ2d@comcast.com. ..
>> Jeff Strickland proclaimed:
>>
>>>
>>> "Mike" <mik@localnet.com> wrote in message
>>> news:SfOPh.5849$B25.1882@news01.roc.ny...
>>>
>>>>
>>>> "Jeff Strickland" <crwlr@verizon.net> wrote in message
>>>> news:szAPh.368$jZ3.275@trnddc06...
>>>>
>>>>>
>>>>> "Mike" <mik@localnet.com> wrote in message
>>>>> news:ClwPh.5969$ya1.4904@news02.roc.ny...
>>>>>
>>>>>>
>>>>>> "Greg" <greglc84@hotmail.com> wrote in message
>>>>>> news:p_uPh.4647$aG1.3248@pd7urf3no...
>>>>>>
>>>>>>> I read the rest of the replies, mostly argueing about resistence,
>>>>>>> anyway Mike I cleaned all connections on bat. solinoid, and alt.
>>>>>>> only one I didn't clean was one down at starter, and starter and bat
>>>>>>> cables are about a year old.
>>>>>>> Bill mentioned at some point bat. was disconnected while running,
>>>>>>> that didn't happen, but when I thought the bat. was dead the other
>>>>>>> day I used my battery charger which has a setting for 70 amps to
>>>>>>> start a vehicle, which I used and it arced when disconncting it. I
>>>>>>> replaced everything on engine when I put a rebuilt in 1 1/2 years
>>>>>>> ago, all but alt. Am I now ready for that?
>>>>>>
>>>>>>
>>>>>>
>>>>>> First start with a known good battery. A fully charged battery
>>>>>> should read around 12.65 volts. The voltage reading you got when
>>>>>> ckecking your battery, 11.96, indicates a battery that is 80%
>>>>>> DISCHARGED.
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> 80% discharged!? No, how about 20% discharged?.
>>>>>
>>>>> Actually, 11.96 is 94.5% of 12.65. This makes the discharge rate to be
>>>>> less than 6%.
>>>>
>>>>
>>>>
>>>> Actually about 11.88 is 100% discharged so you need to redo your math.
>>>> Like I said before, a voltage reading of 11.96 indicates an 80%
>>>> discharged battery.
>>>>
>>>
>>> Sorry, I don't follow you. Please 'splain me it.
>>>
>>> I'm pretty sure my cars start easily with 11.88 vDC. It's not even close
>>> to being fully discharged.
>>
>> Open circuit as opposed to starting load voltage. 9 volts is enough to
>> start as long as it is available at loads of 150 amp or so.
>
> I know that. I don't know why anybody would state that 11.88 volts is a
> fully discharged battery. My logic says that such a charge would be almost
> full as opposed to almost empty.
>
>
>
>
>
>

 

I don't know how the percentage of discharge thing works either, but when
I put the battery on my charger it said it was 40% charged, took 3 hours to
charge at the fastest setting, so a 12 volt battery is 60% gone when at
11.88 volts.

"Jeff Strickland" <crwlr@verizon.net> wrote in message
news:6R8Qh.2120$WL4.809@trnddc04...
>
> "Lon" <lon.stowell@comcast.net> wrote in message
> news:CZSdnbn6fuCMw43bnZ2dnUVZ_oninZ2d@comcast.com. ..
>> Jeff Strickland proclaimed:
>>
>>>
>>> "Mike" <mik@localnet.com> wrote in message
>>> news:SfOPh.5849$B25.1882@news01.roc.ny...
>>>
>>>>
>>>> "Jeff Strickland" <crwlr@verizon.net> wrote in message
>>>> news:szAPh.368$jZ3.275@trnddc06...
>>>>
>>>>>
>>>>> "Mike" <mik@localnet.com> wrote in message
>>>>> news:ClwPh.5969$ya1.4904@news02.roc.ny...
>>>>>
>>>>>>
>>>>>> "Greg" <greglc84@hotmail.com> wrote in message
>>>>>> news:p_uPh.4647$aG1.3248@pd7urf3no...
>>>>>>
>>>>>>> I read the rest of the replies, mostly argueing about resistence,
>>>>>>> anyway Mike I cleaned all connections on bat. solinoid, and alt.
>>>>>>> only one I didn't clean was one down at starter, and starter and bat
>>>>>>> cables are about a year old.
>>>>>>> Bill mentioned at some point bat. was disconnected while running,
>>>>>>> that didn't happen, but when I thought the bat. was dead the other
>>>>>>> day I used my battery charger which has a setting for 70 amps to
>>>>>>> start a vehicle, which I used and it arced when disconncting it. I
>>>>>>> replaced everything on engine when I put a rebuilt in 1 1/2 years
>>>>>>> ago, all but alt. Am I now ready for that?
>>>>>>
>>>>>>
>>>>>>
>>>>>> First start with a known good battery. A fully charged battery
>>>>>> should read around 12.65 volts. The voltage reading you got when
>>>>>> ckecking your battery, 11.96, indicates a battery that is 80%
>>>>>> DISCHARGED.
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> 80% discharged!? No, how about 20% discharged?.
>>>>>
>>>>> Actually, 11.96 is 94.5% of 12.65. This makes the discharge rate to be
>>>>> less than 6%.
>>>>
>>>>
>>>>
>>>> Actually about 11.88 is 100% discharged so you need to redo your math.
>>>> Like I said before, a voltage reading of 11.96 indicates an 80%
>>>> discharged battery.
>>>>
>>>
>>> Sorry, I don't follow you. Please 'splain me it.
>>>
>>> I'm pretty sure my cars start easily with 11.88 vDC. It's not even close
>>> to being fully discharged.
>>
>> Open circuit as opposed to starting load voltage. 9 volts is enough to
>> start as long as it is available at loads of 150 amp or so.
>
> I know that. I don't know why anybody would state that 11.88 volts is a
> fully discharged battery. My logic says that such a charge would be almost
> full as opposed to almost empty.
>
>
>
>
>
>