Length:: 0:32 Mins
It has enough juice to start a medium-large car engine, no problem. (It started my 4.0 Liter V6.)
I also use it inside my camper van as a 12-volt power supply for lighting and a fan. Works well (see below).
There are over a dozen brands on amazon that are nearly identical to this model, so you can shop around. Those that look identical to this model may have minor differences in the carrying case, connectors provided, emergency light features, etc. The 4 "clones" I tested all seem to have come from the same factory because they have so many details in common.
This model comes with a 4-way USB cable (Micro-, Mini-, Apple 30-pin, and Apple Lightning.) Very nice. Probably better than the ones that come with different USB tips for you to lose. The cable can charge more than one device at a time. The Lightning connector works fine...no errors or complaints with my iPhone 6.
ZoZo has a similar Auto EPS model
that I like better (see Note 1).
Li-Ion batteries don't like heat. I would definitely not keep this in my trunk. And even keeping it in your car could ruin the battery over time if you do a lot of outside parking in warm weather.
- Works as described
- It looks and feels like good quality
- Nice quality 120-volt AC and 12-volt DC charging adapters
- 4-way USB cable included
- Nicely designed case
- Mine came with no user guide. Not sure why.
- The ON-OFF switch is a bit hard to operate. The surrounding rubber makes it hard to slide.
- The labels (silver on yellow) are not very easy to read.
- - - Capacity - - -
The stated mAh (milli-Amp hours) for all these battery packs is NOT the amount of amp-hours delivered at 12 volts (or 5, 16, 19 volts). It's the amp-hours delivered at 3.7 volts by the internal Li-ion cells before the conversion to higher voltage output. This unit's 16.8-amp hour spec means you would get a maximum of 5.18 amp-hours at 12-volts, for example. It's about 62 watt-hours of power, no matter which voltage output you're using.
- - - Connector Sizes - - -
It comes with lots of connector tips for 12-16-19 volt output, but it's nice the know the main unit uses very common connector sizes, in case you want to attach your own cables. The 12-16-19 volt output is a 5.5mm/2.1mm barrel connection. The input (for recharging) is 3.5mm/1.35mm.
- - - Nighttime Power in an RV - - -
It's working well for me to power two bright LED lamp fixtures a tiny exhaust fan in my small RV.
One minor hassle is, the unit shuts itself off after about 1 minute if it's not being used. There is no auto-start. You have to hit the battery power button whenever you want to turn your lights on, for example. You can't just turn your lights off and on without restarting the battery pack. The competing models I looked at also work this way.
Also, you could accidentally bump the voltage to 16 or 19 volts if you hit the power button an extra time (or at the wrong time), possibly frying your 12-volt devices.
- - - Disclosure - - -
The manufacturer gave me this item for review. I believe my review is impartial.
- - - Notes - - -
Note 1: ZoZo's very similar Auto EPS model
has easier to read labels. The switch is easier to operate (not sticky). It does not have the belt cutter or window hammer. If once every 1000 years I need to cut a seat belt or smash a window in a hurry, I doubt these features will be remembered and within reach.
~~~ Comments & questions welcome ~~~