Here's a brand new selection of sealed lead-acid rechargeable batteries, for when you're pushing something a little bigger than a penlight. All batteries are all direct from the manufacturer with current date codes. All of them have (2) 3/16" wide quick-disconnect terminals on top. Click on battery description for a photo.

They're rechargeable, although it's not much of a secret. You get a shrink-wrapped pack of (3) flat-top "AA" 3.6 volt Nickel Metal Hydride batteries rated for 1500mAH. Measure 2" long x 1-11/16" x 9/16" with a 3-pin Molex connector and 3/4" leads, black and red for output.

This 6V 1.3AH sealed rechargeable lead-acid battery from Panasonic is a take out from a battery back-up system. Measures 3-3/4" x 2" x 7/8" with a pair of quick-disconnect terminals on the top.