Top positive review
Passed the jump start test, now time will tell on its longevity
Reviewed in the United States on November 13, 2018
I was actually in the market for another set of jumper cables, the two piece type that have LEDs that indicate proper connections to each battery, and couplers to make the final connection before jump starting. These have nearly disappeared from the market, and the few I did find were fairly expensive, so I turned toward a battery pack for jump starting. I have owned two of these in the past, a Schumacher and an EverStart (Walmart brand) which were sealed lead acid types. Both only lasted a couple of years before they became landfill material. I noticed that this Battery Tender jump starter had an AGM battery, so I decided to take a chance on it. I left it plugged in for a few days to ensure that it was at its maximum charge. Then, in 35 degree weather, I connected it to a 1988 GMC pickup with a 5.7 V8 liter engine... using the jump starter as the only source of power. The jump starter barely cranked the engine, apparently not enough to start it. Without recharging the Battery Tender unit, I tried the same test with my 2005 Ford Expedition's 5.4 liter V8. It cranked slowly, but enough to start the engine. I was disappointed that it didn't start the 5.7, but decided that it would probably be adequate to supplement a weak battery and start my vehicles when needed. Hopefully, this unit will give me several years of use before it bites the dust.