tools

Bogert Manufacturing wheel chocks

Chocking your vehicle’s tires is one of the most basic and critical safety procedures you can follow before changing a tire, winching, or working underneath it. Yet how many of us ever use anything but nearby rocks or logs to do so? Not only are you at the mercy of what’s available (Will this work, or do I need that bigger one over there?), but if you happen to be leading a trip or are otherwise in a position of some assumed authority, it lends a rookie taint to your otherwise faultless command presence to be seen looking around for rocks.

I thought about this recently while looking around for rocks.

To make matters worse, I had a good set of chocks with me—the clever folding units made by Land Rover—but they were inconveniently stashed in a compartment under the rear jump seat of the Tacoma, which itself was under several layers of Pelican cases. So I took the lazy route.

Lessons learned: a) Have stuff like this easily accessible, and if it isn’t, b) Follow Graham Jackson’s First Rule of What to Do When There’s Trouble, which is, Slow down and brew a cup of tea, and then Jonathan Hanson’s First Rule of What to Do When There’s Trouble, which is Use the right tools. Sorry Graham. And me.

As much as I like the Land Rover chocks, their lightweight, folding construction pretty much relegated them to tire-changing and working-under duties. Thanks to the fertile mind of Richard Bogert of Bogert Manufacturing, I now have a set of heavy-duty, winching-compatible chocks.

Constructed of 3/16ths-inch steel and heavily powder-coated, the Bogert chocks take up virtually no more room than the folding ones if you stand them on edge in the corner of a cargo box. A set of them comprises not two but, properly, four, so you can anchor two wheels on both sides, or four wheels on one side if you’re on a hill. Additionally, a set of holes and slots in each chock allows you to chain two together on either end of the wheel to prevent shifting if the truck jerks back and forth under a load—nice. Each set of chocks comes with four chains, so you can anchor each pair of chocks on the inside and outside of the wheel if needed. The result is one solidly immobile truck.


The set is now stored in the “Camper Setup” Wolf Pack box that rides just inside the door of the JATAC's Four Wheel Camper. So accessing proper chocks will be as easy as picking up a rock, and my faultless command presence can remain intact.


From now until the end of June, Bogert is offering a 15 percent discount on all their superb recovery tools and accessories. Please use code K7E. Bogert Manufacturing is here.

The Micro-Start XP-1

Experienced mechanics don't often sound giddy over the phone, but Dave Anderson sounded giddy when he called me from his Flagstaff, Arizona, shop, the Good Carma Garage (which really should be a radio program).

“I just bought this thing off a tool truck, and you have to get one,” he said, “You’re going to think it should be on every overlander’s equipment list—even before he buys a pith helmet.”

Dave. Such a kidder. As it happens, I own a pith helmet. And not one of those fake ones made from cork or, worse, styrofoam, either (I won’t even mention Graham’s mesh thing)—mine is a genuine pith helmet made in Vietnam from the pith of the Aeschynomene aspera, or sola plant (one of the original names for the helmet, sola topee, was later corrupted to solar topee). While they’re now little more than a Hollywood cliché, pith helmets are eminently practical—the thick fibrous material offers exceptional insulation from the tropical sun when touring one’s tea plantation or stalking a man-eating tiger with a Rigby.

Where was I? Oh, right: At Dave’s insistence I ordered a Micro-Start XP-1 from Antigravity Batteries. The zippered pouch that arrived three days later was no bigger than a calendar/day planner (remember those?). Inside was a bewildering array of adapters for charging various electronic devices from phones to laptops, and an astonishingly lightweight (15 ounces), 225-amp-hour lithium/ion battery, just one by three by six inches, which, incidentally, can also be used to jump-start your truck.

Say what?

It’s true. The pouch includes a set of battery-post clamps, and the company claims the power pack will start a V8-engined truck—not once, but several times. 

Could this mean the end of jumper cables? I’ve always hated those things, and especially I hate what happens when I play good Samaritan to jump some poor bloke’s dead Malibu—in trying to help he always wants to grab the cables and hook them up in the wrong sequence—if not to the wrong terminals. I have to come off as a tyrant just to do a good deed. With the Micro-Start I’d be in complete control of the situation. And of course if your own vehicle becomes stranded you are completely removed from the need for a donor vehicle—handy if the nearest candidate might be 40 miles away.

The instructions for jump-starting a vehicle tell you to hook up the terminal clamps to the dead battery first, then plug the siamese fitting into the power pack. The reason for this is that, while the teeth of the clamps are well-surrounded by plastic, it would theoretically be possible to screw up and touch them together, resulting in the same alarming pop and flash you get when you do the same thing with jumper cables. If you were really determined and managed to clamp the teeth together, a puff of smoke would signal the death of your power source. I found it easy to remember to hook up the clamps first and then attach the battery, and virtually impossible to remember to unplug them first and then undo the clamps after use. But I never shorted anything.

Hook up the terminal clips first, then plug in the power pack.

So how well does the XP-1 work? I disconnected our Tacoma’s battery to give it a try by clamping the leads directly to the battery cables. I wanted to video the process, and while setting up the camera I simply stashed the XP-1 battery in my back Levi’s pocket—it really is that small.

You can find more torturous demonstrations online, but the initial trial on the Tacoma went thusly:

It was impossible to detect a difference between the XP-1 and the way the truck fires with its own battery. I started it three times in a row with no trouble at all, and there were four blue LEDs left out of five on the battery’s charge indicator. Clearly there’s not only sufficient amperage inside that little brick to turn a V6’s starter motor, but to do it multiple times.

As impressive as that demonstration was, it simply confirmed the maker’s claims. Looking around for an unfair test, my eyes alighted on our 1985 Mercedes 300D turbodiesel. To start that the XP-1 would first have to power the glow plugs, then turn the hi-amperage starter necessary to crank a five-cylinder engine with 18:1 compression. After recharging the power pack and removing the cables from the 300D’s massive battery, I hooked up the XP-1, and:

Okay, so that was a bit too much to ask. (Scot Schafer at Antigravity Batteries confirms that they have a model in the works that will be configured for the much tougher task of starting diesel engines.) Rather alarmingly, there were no blue LEDs left on the charge indicator after the Mercedes experiment. Had I killed this thing 15 minutes after first deploying it? I plugged in its 120-volt charger (there’s also a 12-volt car adapter)—and an hour later it was back at full charge. It’s a resilient piece of equipment.

If your vehicle is powered by anything up to a 400-cubic-inch gasoline V8, the XP-1 will provide you with ample starting capability. The battery will retain its charge for many months at a time; if you remember to give it a top-up every half year or so you should be pretty much immune to becoming stranded due to a bad battery. And think of the effect on the owner of the dead Malibu when you start his car with a magic box the size of a paperback. It might be a good idea to keep a few XP-1 kits in the truck to sell at an exorbitant profit . . .

The XP-1 is a bargain at around $140. A basic model, the XP-3, sans the adapters for personal electronic devices, is available for about $30 less. AntiGravity Batteries is HERE