I Was Camping in New Bern North Carolina last year in November. It was a nice sunny day but when the sun went down, it got REAL cold. I went through 6 bundles of firewood before I decided to climb into my warm sleeping bag- fully clothed including a jacket!!
Unfortunately my ElectraGlide didn't have a warm sleeping bag to crawl into. I was to break camp at 6 a.m. and head home but when I hit Start on my bike-NOTHING.
This was a first, and there was no one around to give me a jump start, and it was Sunday morning in the South, so I guess you know where everybody was.
Lesson Learned-I wasn't prepared for this.
When I got home I started researching power supplies that would be powerful, yet small enough to pack. I found the AntiGravity Batteries unit on Amazon and Got it. Now I know I have a backup plan.
So Far I have found that it's great to give me power to my phones, Ipad and speakers. I can go a whole weekend drycamping with enough power. I had to use it to Jump Start my 4-Runner after leaving the Dome Light on All night, that was at Cape Charles on the Chesapeake Bay- that alone was worth the price of the Unit.
For the Extra Peace of Mind I heartily Recommend the MIcrostart - They have several models and power profiles, I found the XP-3 was the right size for me. Read some of the reviews below and if you want one just click on the Amazon logo at the bottom of the page.

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The Micro-Start XP-3 PPS (Personal Power Supply) is so small it fits in your pocket yet so powerful it starts Cars, Trucks, Motorcycles, ATVs, UTVs, Snowmobiles, Watercraft, and more. The XP-3 has 200 Amps starting current with 400 Amps Peak.

JUMP-START: Vehicles with gas engine size up to 5.7 Liter V8. (Not intended for large V-twin motorcycles/Diesels.) Conveniently, the XP-3 can also

CHARGE & POWER: Your electronic devices, with TWO USB ports. Charge Smartphones, Tablets, iReaders, GoPros & other Cameras, PSPs & other Handheld Games, MP3 Music Players, Bluetooth devices and more. Great capacity for back-up power: 8000 mAh. The XP-3 can charge a cell phone ~6 times or a tablet ~3 times.

OTHER FEATURES: Ultra-bright high-power LED Flashlight built-in + Lighted battery capacity indicator + Automatic power-off when not in use + Built-in over-charge and over-discharge protections for long battery life. The XP-3 comes as a complete kit with everything you need, including Accessories and a compact, durable Nylon Carry Case to neatly organize all parts.

KIT CONTENTS:1 Micro-Start XP-3 PPS; 1 set of SMART Mini Jumper Clamps (with thermal protections and multiple safety features: prevent reverse polarity connection, over-charge, over-discharge, short-circuit, back-charge); 1 universal 4-into-1 USB Cable (Tips are: Mini USB, Micro USB, Apple 8-pin, Apple 30-pin); 1 Carry Case.

The XP-3 can be recharged by any Micro-USB connection, for example by your phone charger or computer, or USB port found in your car, or a hotel or airport. Simply charge your Micro-Start once and take back-up power everywhere! Whether commuting, camping or traveling, remain confident you can start your vehicle, make an important call, or power your child's PSP during that long trip in the car. Whatever you do, don't get stuck without back up power again.

SMALL AND EASY TO PACK, STUFF IT IN YOUR SIDE BAG.

CLICK HERE TO SEE MORE OPTIONS ON THE POWER SUPPLY

HERE'S ANOTHER MUST HAVE FOR ANY TRIP THAT INVOLVES THE OUTDOORS, ESPECIALLY IN MARSHY AREAS WHERE THERE ARE PREDATOR MOSQUITOS.  HAVING JUST GOTTEN BACK FROM THE OUTER BANKS OF NORTH CAROLINA, I CAN PERSONALLY TELL YOU THIS ONE WORKS!!!

Keep insects at bay while you camp, backpack or BBQ Lightweight - Only 4 oz. Compact and portable - Only 3.8"(H) x 2.0" (W) x 2.6" (L) Fuel Efficient - up to 90 hours of run-time from even the smallest 4 oz gas canister Fuel System – Works only with IsoPro gas canisters, so if you use a Pocket Rocket stove you already have one in your kit. VERY small and easy to carry and set up

CLICK HERE TO SEE MORE ABOUT THE THERMACELL AND READ THE REVIEWS

The Original Chilly Pad Cooling Towel. If the weather is hot, a Chilly Pad Cooling Towel is the answer!  I just got back from a Ride to Death Valley- 115 degrees- this pad SAVED MY BUTT!!. I soaked it in the ice water from my cooler and wrapped it around my neck, so it not only cooled me off but prevented sunburn on my neck and chest. You can also bring it up over your mouth and nose ( a little hard to breathe, but super cool) Just keep it nearby for a quick cooldown. The Chilly Pad Cooling Towel is made from a hyper-evaporative material that retains water while remaining dry to the touch. When wet, these cooling towels and pads begin to evaporate and cool, providing cool, soft comfort to the user. When it stops cooling, simply re-wet it in hot or cold water and wring it out, within minutes, it's cool again.

REMEMBER WHEN BIKES USED TO COME WITH TOOL KITS. YEAH THEY WERE CHEAP  FLIMSY TOOLS BUT AT LEAST YOU HAD SOMETHING. HERE'S A TOOL ROLL WITH EVERYTHING YOU'LL NEED FOR GENERAL ROADSIDE WORK. THERE'S ENOUGH ROOM TO ADD YOUR OWN STUFF TOO. NICE TO HAVE WHEN YOU'RE OUT ON THE ROAD

This tool kit is designed specifically for Harley-Davidson motorcycles.
Contents: 1/2in. and 9/16in. open ended wrench
3/8in. and 7/16in. open ended wrench
5/8in. and 3/4in. open ended wrench
Adjustable Wrench
Multi-Tip Screw Driver
Small Flashlight
Electrical Tape and Wires
Allen Wrench Set
Tire Pressure Gauge
Zip Ties
Vise Grips
Socket Wrench

Have you ever been out for a ride and found yourself in a great spot that you just wanted to stay a while. Like on the PCH at dusk or a Quiet Lake. Or maybe you just need a break after a couple hundred miles and you just want to kick back, but not sit in the dirt or on the side of the road. This chair sets up in seconds, can fit into a corner of your TourPak (see how mine fits) and is rated for 350 POUNDS- that's a BIG guy. It sits up taller than the shorter HeliNox so it's not a hassle to get in and out of. I traded in my GCI outdoor for this one because it's lighter, 1/3 the size and has a quality build that will last me.