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Old 10-22-2013, 07:33 AM   #7
rumbleweed
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I am a big fan of the Battery Tender (http://batterytender.com/). They monitor the battery voltage and charge as required. You can leave them attached to the TM and just connect the Battery Tender. as the parasitic loads of the TM draw it down, the BT will replace the charge. Cold is not an issue ( actually good) as long as the battery is fully charged. If both batteries are the same age and capacity, you can connect to one ( assuming it is two 12V Batteries in parallel) and be good to go. You can find the Battery tender at online retailers for less than the oem site.
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