I don't think I will try a third one of these. I am beginning to think that these HF power tanks aren't going to be dependable enough for field work. The jump starter features a high-performance 9 Ah sealed lead-acid.

When I unplug and plug in the charging adapter the light flashes dimly and there is a faint sound of a click. This 750 amp jump starter delivers enough power to start up nearly any passenger vehicle. This one has been plugged in since 1700PST yesterday So I don't think this one is charging either. The voltmeter says that it is charged a tad over 100% at approx 12.9 volts. What actually happened was the charging light turned off after 30 minutes or so. The voltmeter must be checked periodically when charging and the power pack must be unplugged when the unit is fully charged. The charging indicator light will not turn off when charging is complete. PERFORMANCE We let the battery on a Kawasaki Teryx4 die, and the Viking power pack easily jump-started it. The Viking jump-starter comes with a case and all the usual charging accessories, as well as a very handy 12-volt power-supply cable with a lighter socket. The charging indicator light will illuminate when the unit is charging. Other compact jump-starters with similar power cost 95 or more. Using the battery tender to charge instead of the built-in charger allows you to leave it connected and not worry about over charging. It will charge the battery when it's low, shut off when it's not needed, and float charge if it drops a bit.ДЄ battery tender lets you buy a cheap jump-starter with a dumb charger.

These allow you to leave the thing plugged in all the time if you want. It's all too easy to forget and end up with a dead battery.Д«etter jump start units have a smart charger built in. It's up to the the owner to keep track of the charge in the battery, charge it for the right amount of time, and then disconnect it. If you leave it connected to the battery, it will over charge and damage the battery. Many inexpensive jump-start units have a dumb battery charger - essentially just a power supply connected to the battery. New AC in Power Charging Cord Charger Cable Replacement for Chicago Electric Model 38391 12 Volt Jump-Start Jump Starter Harbor Freight Tools (Note: This is an AC Power Cord ONLY) Brand: Kircuit. A carry case, jumper cables and charging accessories are included in the kit. A flashlight is incorporated into the case along with 12 volt and USB charging ports for electronic devices. As I said with my Schumacher I just plug one end of an extension cord into my Battery pack the other end into the wall socket and let it cook until done. The Harbor Freight Jump Starter measures just 1-5/8ењ†-1/4x3-1/8 and it provides up to 450 amps of peak power. Schumacher Electric 1200-Amp Car Battery Jump Starter with Digital Display Battery Tender 0.75-Amp 12-Volt Car Battery Charger CRAFTSMAN 150-Watt Power. I did a search for Battery Tender so have an idea as to what it does BUT (Isn't there always a BUT) I seems like just another piece of something or other that with the right Battery Pack would be defined as useless.

Harbor freight jump starters