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CAT # GC-612 (2 Reviews) Write a Review

$8.65 each
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Product Description
New, sealed lead-acid battery. 3.8" x 0.93" x 2" high. Non-spillable, operates in any position.
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
(This item was manufactured prior to August 31st, 2018)

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Customer Reviews (2 Reviews)

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Sealed rechargable battery

Reviewer: from Maple Lake, MN US

This is an amazing little battery. Not that I am using it under heavy use, but I substituted this instead of having to buy AAA batteries all the time for my radio. To charge this battery, all you need is a 9 volt dc wall wart and let it trickle. These batteries can stand a charge for long time, so no need to set timers, etc. If you are thinking of buying one for experiments, by all means, go for it !

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tons of power

Reviewer: from Berkeley

This and all lead acid batteries can draw many more amps than other batteries, even lithium ion batteries. This particularly battery is the smallest one available: great for portable super-high-power/"low"-battery-life (pound for pound) applications. For example I connected a pair of these to a focused (1.38"D, CAT# HLP-350) 35W halogen lamp for a blindingly bright flashlight. Lasts less than 15 minutes, but who cares: it's rechargeable and lasts plenty long enough for all the common applications that don't involve leaving the city. Don't use either 50W lamp for this purpose: they are flood lights not spot lights. Unfortunately the lamp bases are sold out, find another 0.2" 2 pin socket. Built it in minutes with a bit of tightly wrapped duct tape. Poked the lamp pins right through the duct tape covering the socket. ~$19-$20 in parts if you include a switch and wall transformer to charge (see previous review, increase voltage if charging 2 in series).

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