yellowchinaman

#1

I have a 12v li-po cell. The alternator puts out 80amps.Is that too much current to charge a small cell?
How do I stop the alternator over charging it?
The instructions say I must make sure the the battery management system doesnt exceed 15v.

This post has been edited by yellowchinaman: Apr 25, 2014 - 1:11 PM

Box

#2

I'm sure you have a voltmeter or multi-meter right? Hook it up to the battery with the car running and rev it up to 5K, if it doesn't exceed some 14.4-6 volts you're fine.

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2001 Miata LS 5-speed

The_enD

#3

Buy a small voltmeter and monitor your charging all the time.

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FS thread :Custom Celica partsmade to order + moreClick the image to visit my FB page

yellowchinaman

#4

>

QUOTE (The_enD @ Apr 25, 2014 - 2:35 PM)

>Buy a small voltmeter and monitor your charging all the time.

How's that gona help stop the car over charging it? Also is it too much juice going into the cell?

The_enD

#5

Your ECU controls the alternator's internal voltage regulator. If anything is to happen you will see it fast and react accordingly, instead of driving for an unknown period with a bad charging system.

And your alternator is not constantly producing 80A. When demanded, it supplies.

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FS thread :Custom Celica partsmade to order + moreClick the image to visit my FB page

yellowchinaman

#6

I see. My boost controller has a built in volt meter and at most its 14.1v when boosting.
so you think its ok to just connect it like a normal battery?

The_enD

#7

I am not familiar with the type of cell you have mentioned. But if it designed for in car use, just follow the instructions and install.

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FS thread :Custom Celica partsmade to order + moreClick the image to visit my FB page

Box

#8

14.1V is kind of weak, so you really don't have anything to worry about then.

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2001 Miata LS 5-speed