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Re: (ET) Tech help again please - battery again
You can run the tractor on 3 car batteries, slowly and for about 100'.
People can (but shouldn't) run the tractor off the CHARGER briefly.
You can test deck motors off a 12v charger with at least 10 amps.
You can run a tractor on 5 normal batteries in a pinch, but only slowly.
From: elec-trak-bounces cosmos phy tufts edu
[mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of John
Sent: Tuesday, October 11, 2005 4:16 PM
To: elec-trak cosmos phy tufts edu
Subject: (ET) Tech help again please - battery again
First off a big thanks to everyone for their advice on the battery
front. I have narrowed down the search and have found some local 12v
batteries. These are 'cat24', and are rated at 80 amp hour - 20 hour
rate. The tractor manual says to use 90 amp hour. I have found some
'cat27' that are rated 105 amp hour, but they wont fit into the tractor.
Could any one tell me what the consequences of using 80 amp hour instead
of 90 amp hour might be? I have been guessing at anything from the
tractor not running at all to it needing more frequent charging. Also,
would I be OK to put 3 instead of 6 in to start with - just to run a 5
second test to see if the motor is working?
On another note, the idea of using the tractor as a backup power supply
sounds really good to me. I am thinking of later keeping my tractor
charged with a PV.
Many thanks I advance,
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