Battery Council International
Tons of information on battery care, recycling, day to day use, and regulations.

Cadex battery chargers
If you use batteries, you will need to charge them. Cadex offers chargers for every type of batteries you might chance upon.

CSB 12V Batteries
CSB has a large line of sealed 12V batteries. Many different sizes and weights. In addition, they will recycle/reuse your old batteries.

Digi-Key batteries
You can search for 12V batteries and chargers which can be purchased online.

Duracell
Duracell, Incorporated is the world's leading manufacturer and marketer of high-performance alkaline batteries and other consumer batteries.

Electrofuel Batteries
A battery with spectacular energy density available in a flexible form factor. This is ideal source of energy for your wearable computer.

Fedco Electronics
Fedco Electronics, Inc. has become the largest supplier of replacement batteries to the computer industry. They have batteries of well over 300 laptop companies.

GN laptop batteries
Many people hack into their laptop to create their own wearable, so they may need additional batteries. Here is a list of over 100 different types of laptop batteries.

GN lead acid batteries
A multitude of 6 and 12 V lead acid batteries of different capacities and weights.

Guardian Batteries
Guardian by Douglas has a full assortment of 4, 6, and 12 volt batteries ranging from 1 to 190 Amp hours, Guardian is sure to satisfy your needs for safe, non-spillable power.

Power-Sonic
12 V lead acid batteries from 0.8-100 Amp hours.