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With me working from home, I have hardly been driving my 2011 Insight. I have a batter charger and was wondering if it is necessary to fully remove the battery in order to charge it. I haven't with other vehicles but I don't want to mess up any of the hybrid stuff. Thanks.
 

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2001 5S "Turbo"
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Charge at a low rate as normal. No need to remove the battery.
A "batter" charger? Does that make the dough rise?
 

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I charged my battery up connected in the car with a Walmart unit using the ‘middle’ 4 amp load. I skipped the 6 amp ‘fast’ charge and also skipped the 2amp ‘trickle’ mode - everything fine.
 

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My 12V battery went dead a month ago.
It had a bad cell. I could charge it with an OptiMate 4 desulphating trickle charger and it would light up green after a day.
Then if I turn on the lights and music without the engine running it would drop below 10 Volts in minutes.
The bad cell was still empty, but the 5 good cells prevented it from getting charged.

I was planning to have it replaced, but gave it one last try with an old HP inkjet printer power adapter I had kept. It provides both 32 and 16 Volt. The latter was very useful, only it shuts itself down when the current goes above 3.5 Ampere so I had to shunt it.

Anyway, after a couple of days I have charged my 12V battery with more than 35 Ah, deliberately but gently overcharging the 5 full cells in the process, but that cannot be helped - and they were in better condition than the bad cell anyway.
So finally the battery shows 14.20 Volt right off the charger, and 12.72 Volt after a nights rest and some very light use. Moreover, after 14 days of not driving at all it still is above 12.60 Volt, where before it would be anywhere in the 11s.

I believe I have fixed my dead battery...
 
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