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Wednesday, March 21, 2018

Mini, Battery Powered, Engine Jump Starters And Power Banks

    I wrote an article last week about wireless and USB charging battery packs. They work pretty well, all things considered. Some nice folks commented about Lithium Ion battery based engine jump starters and I promised them an article about them. Well, here it is. Everyone knows I tend to be an early adopter of new technology. A couple of years ago I purchased a very small Li-Ion jump starter from a (mostly) reputable source. It was tiny and boasted it could easily start a V8 engine, though not a diesel. I was sold. Did it work as advertised?

It's Only 1/2" Thick!
Let's take a look at the one I bought first then move on to much newer (and better) versions. The one I have has an 8000mAh batter (8Ah) and in addition to regular jumper cables on a 1 foot cord it had a port to charge any device via full size USB. Add that to a bright white LED flashlight all in a package a bit bigger than a deck of playing cards and you have the idea. I carried it in my motorcycle "trunk." Yes, I said, "trunk!" I have a Honda PC800 Pacific Coast, look it up! It lived there unless I was taking a trip in another vehicle, then I brought along just in case. It all fit in a small neoprene bag with a Velcro closure that I had sitting around. I have NO idea what that bag came with...

The White Dot Is A Super-Bright Flashlight
To charge it, they provided a wall charger and a cable to charge from your computer's USB port. It took a long time to charge...about 14 hours from dead. I made sure it was charged regularly. That was allegedly easy, as it had 4 blue lights on the side that all illuminated when it was full. The first time I used it, it worked OK. Not great...but it did start a 3.9L V6. Then I didn't use it for a few months after recharge. I was off to pick up an SUV in Pennsylvania, about three hours away. When we wouldn't start, so the seller jump started it from a conventional lead-acid battery pack, no problem there. We figured it would charge from the alternator on the trip back. After 1.5 hours we made a gas stop. Shut it down (First Mistake) and it had a dead battery. Aha! Perfect time to use my micro sized jump box. Except after it was hooked up (it indicated it had a full charge) no start. power coming from it at all.

Very aggravating. We managed to borrow a full sized jump pack from a tractor-trailer driver. Started right up. The rest of the trip was uneventful. When I got home, I immediately plugged in the battery pack and left it to charge. It wouldn't. Looked OK...voltage from the charger was just didn't work. I'll be taking it apart soon enough to try and fix it (or, at least figure out what failed). Now I was on the hunt for another one. Bear in mind this is two years later and many large companies are offering them at reasonable prices (between $30 and $80). I've been looking at ones with decent warranty periods. Of course, many of these will be made in China. Not a problem in and of itself, but quality is usually a bit spotty. If you get a good one, it's great. If not...return it and try again.

This time, I will be buying one with a larger capacity. I have a V8 Gasoline engine (360cu. in/5.9L) in my RV, so the extra capacity will be useful, especially if my engine battery fails in cold weather. Of course, most RVs let you connect your house batteries to your engine battery temporarily for a boost, but this is a "just in case" scenario. Basically, it's peace of mind, with the added bonus of being able to charge (or run) your USB powered devices away from your RV.

Seems like a good idea, and since they are so small and lightweight, storing them will be a snap. I'll let you know when I finish my research and purchase an upgraded, more reliable unit. I still believe they are a great idea!

Be Seeing You...Down The Road,

Rich "The Wanderman"