I have a portable ’12 v. jumper pack-portable’ with a cigarette style power tap. Would it be most efficient to utilize a step down transformer that taps into the back-up battery connections vs. a 12v. d.c. to 120v. a.c. adapter?
Browsing Posts tagged Operation
My cable modem has a battery back-up that lasts 2 hours.How can I best extend that (for telephone operation)?
December 5, 2011
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Schumacher SE-1250 Manual Operation 10 and 30 Amp Charger with 50 Amp Emergency Engine Start
April 30, 2010
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10 amp output recharges auto size lead acid batteries in 3 to 5 hours, 12 volts fast charge booster Will charge conventional, maintenance-free, deep cycle and low maintenance 12-volt batteries 30 amp fast charge increases battery power quickly Output increases from 30 to 50 amps when cranking engine Rocker switch with off position for safe, [...]
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