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November 10, 2009
Keep the Spark Alive — Even with a Gel Cell

You have a cathode of lead dioxide on one end and an anode lead sponge on the other. Throw some sulfuric acid in the mix and you've got a place to hold your electricity.

Lead-Acid car batteries have come a long way in the last century and combining that sulfuric acid with silica to form a gel battery has taken us even farther. Gel batteries offer more mounting options and can out perform conventional auto batteries in extreme conditions if they're charged properly.

Overcharging a gel battery dries out the gelatin, never to be rehydrated again, while under charging repeatedly causes a sulfate buildup that reduces the ability to hold the charge it's receiving.

Most maintenance free automotive batteries are filled with fiberglass matting in lieu of actual silica sand but the principles are the same. You'll need a regulated, voltage limited battery tender that's smart enough to handle high tech charging.

Battery Tender has long been the industry standard for smart chargers and Batteries Plus has a great price on their Battery Tender Plus that may be worth a look.

40 Megawatt Battery
Fairbanks' Back-Up

Battery Killer
Give 'Em the Chair

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