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Forum Index : Electronics : Tractor batt., use of toroid for charging

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domwild
Guru

Joined: 16/12/2005
Location: Australia
Posts: 873
Posted: 01:27pm 16 Oct 2015
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Hi,

My tractor battery of the Fiat 650 (65 HP) is surely suffering as I only have a 10A charger and I am not using it for six weeks at a time; batt. is 143Ahr and should probably be charged at more than 10A. Alternator can charge at 2200 RPM with about 600W. The batt. is old and I am trying to breath some life into it. The charger never switches off, even after all-night charging and stays at about 2Amps in the morning.

Q1.: Do I get bulk charging during driving as I am probably not getting enough Amps into the batt. from the 10A charger? But 600W/12V = 50 Amps, that does seem to be enough?

My free gift, the $1,500 Victron charger/inverter (24V/3000/70A - 16A) from the scrap yard seems to be dead but has two massive 14.6V/25A toroids, which I have removed.

Q2.: Is it possible to avoid having to buy a new batt. by adding a rectifier to the toroid and so building a cheap higher-Amp charger or is this most likely just one of my many crazy ideas?
Taxation as a means of achieving prosperity is like a man standing inside a bucket trying to lift himself up.

Winston Churchill
 
jdevine82
Newbie

Joined: 01/09/2016
Location: Australia
Posts: 13
Posted: 02:01am 02 Sep 2016
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You can use a inverter welder as a charger. Just make sure you connect the electrodes to the battery before turning the welder on. You will need to manually watch it of course.
 
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