Posted by JMOR on December 16, 2009 at 17:08:58 from (72.181.166.239):
In Reply to: Battery Tender II posted by The tractor vet on December 16, 2009 at 15:03:47:
Dellbertt said: (quoted from post at 19:03:47 12/16/09) I went to Kalamazoo today to check on the availability of a 6v battery tender.
Walmart had Schumacher 6v/12v for $20. (Never had good luck with Schumacher products)
Meijer (local chain) had Stanley 12v for $22 but it was 6-8amp.
Harbor Freight had a 12v/1.5amp for $9.99.
Question: If I buy the 12v Harbor Freight and add a 12v to 6v ballasts resister to charge a 6v battery will that mess up the automatic operation of the float charger and perhaps make it never shut off. Or will adding the resister have no affect on the charger operation?
Thanks,
Dell
A true battery tender/maintainer/float charger must see the actual battery voltage, so no it will not work correctly if you try to insert resistance between battery and charger. A battery can be charged like that, if you monitor specific gravity regularly during charging, but no auto shut off, etc. and you must be careful not to overcharge and as for the"battery tender/maintainer/float" function, that just plain won't work with 12v unit & 6v battery.
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