I’m planning on doing some solo adventures in the not so distant future and while I believe I have the being sufficient aspects of mountain biking out on the trail figured out, I assessed that I needed to shore up my solo base-camping and exploring with my truck self sufficiency a bit. I always carry a set of jumper cables in my truck which are great if there is another vehicle around but what do you do if you are out in the middle of nowhere and your battery goes dead? Luckily it has not happened to me yet but I have had a couple of scares. The Rainbow Rim Trail on the North Rim of the Grand Canyon for examples qualifies as an out in the middle of nowhere ride. You lose cell coverage at least 20 miles before you get to the trailhead and you could be waiting a day plus for someone else to come along if you are out there in the middle of the at certain times of the year. I wanted a way to jump start my truck should the battery go dead without having to resort to install a second battery and isolator system in the truck. I also did not want something that was bulky or weighed a ton. Additionally, I wanted a method to recharge my various gadgets I would have around the truck base-camp (laptop for futzing with photos, DSLR and GoPro Batteries, etc…)
So after a bunch of research and gawking with various offering I bought the Micro-Start XP-10 Jump Starter/Personal Power Supply from Antigravity Batteries. I have had it now for a few months and the XP-10 fits the bill for my needs and then some. The Lithium-Ion Jump Starter/Battery Pack is quite small for the power it provides. Its 9″ by 3.2″ by 1.2″ and weighs just 1 lb. 2 oz. It comes in a simulated leather carrying case with an assortment of plug in and out cables. It regards to its primary purpose of jumpstarting my truck, it has that covered in spades.
It comes with a diminutive set of battery clamp cables (14.5″ Long) that plug into a specific port on the end of the battery. Antigravity calls them “Smart Clamps” since they check for things like reverse polarity and how bad off the battery is discharged. To use just hook up the clamps to your car battery, plug the clamps into the XP-10 battery and turn it on, if you get a green light on the clamp, hop in your vehicle and start it up. The XP-10 provides 300 starting amps with a peak current of up to 600amps! The directions tell you to disconnect the battery clamps within 30 seconds of starting your vehicle. I have disconnected my truck battery completely and this thing was able to start my truck. I did this several times and the battery still showed a full charge. There are videos of folks starting six and eight cylinder trucks dozens of times on a single charge.
Now for the personal power supply features. The unit has two USB Outputs that can provide 2A and 1A of charging current for whatever USB devices you may have. At the same end of the battery as the USB ports is the connection for the battery clamps (normally behind a rubber cover) and a LED flashlight that has High, Low, Strobe and SOS modes. The company’s website list the battery as 18,000mA capacity and the back of the case list it as 66.6WH which I’m not sure how many smart phone recharges that will get you but a lot seems be in the right ballpark. More importantly the amperage it can provide is impressive. The literature does not give a lumens value for the “Hi-Power” LED flashlight. The beam on the light is more a flood than spot. Comparing to some of my other flashlights I would guess this is around a 100-130 lumen light. While the light can be handy it is was not one of my needs when looking for a jumper starter.
The kit includes a short 4 way USB cable that has iPhone lighting and 30-pin plugs along with USB mini and micro plugs.
On the side of the unit are 5 LEDs that give an indication of the unit’s charge level. The power of the battery is such that I can use the battery for other things and still be confident that it could start my truck as long as I have 3 LEDS left. The single button that operates the unit is located on this side as well. Once turned on, the unit can detect if the devices are not drawing any power and will automatically shut itself off. One of the outputs its provides is a 12V 10A circuit that can be used for a wide array items. The kit does not include a female cigarette socket to the 5.1mm DC plug cable which would be quite handy. This was not a deal breaker for me as you can get it for about $11 on the companies website. But in my case I had one already from another piece of gear.
An additionally output is a 19V circuit that can handle up to 3.5A. The majority of laptop makers in the world seem to have settled on 19 volts as the charging voltage for their devices. The kit includes a small DC plug jumper (5.1 mm that fits both the 12V and 19V ports) and 8 adaptors that fit the majority of the laptop manufacturer’s offerings. Note for you Apple folks, the MacBook Pro and Air laptops use different voltages (16.5V or 14.5 based on various models and years) so making a custom adaptor is not a simple task for your equipment.
Charging the XP-10 is as simple as using the provided AC-DC charging adaptor or the 12V cigarette plug adaptor. The XP-10 also has built in overcharge as well as over-discharge protection circuitry. Amongst the other devices of this genre, the overcharge protection and the ability to be charged from a vehicle (12-14V) were huge selling points for me. Some of the other units could not be charged from a cigarette lighter port or did not have overcharge protection. The ability to charge the unit in this manner allows me to use this battery around camp and I can recharge it from the truck while driving to the next location. Additionally I have a portable/backpacking solar panel (which I’m going to review later) that can output the correct voltage to charge this battery as well. This means I can let the sun charge up the battery over the course of the day while I’m out playing on the trails and not worry about it being overcharged (which can damage batteries). I can then use this battery to recharge my toys back at camp without having to be concerned about draining down the batteries in my truck.
I don’t have fancy official testing stuff like graphs of voltage/amperage over time stuff. Here are some practical things I have done with battery pack. All of the following was done on single charge. I disconnected my Toyota Tacoma’s (4.0L V6 Engine) battery from the truck and started the truck three times. Yes, this battery pack jump started my truck three times with no battery in the truck whatsoever. The following day I recharged a coworkers Blackberry from 5% to 70%. Later that day I recharged another Blackberry from 8% back to 100%. During this time the charge level on the XP-10 battery went from 5 lights (which I assume to be mean 80 to 100% full) down to four. The following day I recharged my ASUS Zenbook Laptop (quad-core i7 Intel processor) from 11% back up to 96% (while I continued to use it) before the XP-10 shutdown as it was discharged.
I’m pretty freaking impressed with this gadget. The MSRP is $209.99 and I paid around $150 for my unit. I consider it well worth the investment for the versatility and piece of mind it provides.