The first thing I did was try 4 of those batteries in a 2 port sprinkler timer. They worked for a few days, then got drained completely. I then tried to charge them in the Lenmar charger and it blinked red indicating that all 4 batteries had gone bad. I happen to have a Tenergy 4 port LiPO/PB/NiMH battery charger for my RC helicopters, so I decided to make a plastic tube so I could put all 4 batteries in series and try charging them on the NiMH setting. They charged with no problem and are working fine and now charge fine in the Lenmar charger. This basically means that the Lenmar charger is crap and won't charge dead NiMH batteries that are perfectly fine. Had I not had the Tenergy charger and some persistence I probably would have believed the Lenmar charger and thrown them away.
I've since bought a much better sprinkler timer, but these batteries still don't work in it, so I'm stuck with the only application of these batteries being one of my remotes. They work great, but all my other devices require LiPOs.