Most helpful critical review
7 of 9 people found the following review helpful
Best Choice With Few Competitors
on August 21, 2013
I use this battery to power specialized equipment used in Paranormal Investigations, namely, REM-Pods and Shadow Detectors. Once charged, they do in fact hold their charge over time, but there is one significant problem with their design that complicates their use. In many 9V applications, either the battery lead itself or the battery must be brought together with significant force in order to get the terminal sockets to engage and lock into one another. With this particular battery, it's not a solid little mass, like an alkaline version of a 9V would be. So using force to press the terminal sockets into each other results in the top of the battery depressing back into its own casing, slightly. They still work, but it is a concern. It's been a few months now that I've been using them in spite of this issue and they're continuing to work just fine. Given how few choices there are in the market for rechargeable lithium based 9V batteries, these will do.