Got Lumens?
Flashlight Enthusiast
You could try and replace just the two cells once every 45 days? Treat them as two banks of batteries instead of one.I have the opposite situation. Last week, I noticed a problem with 4 AA powered motion detector LED light in the kitchen hallway closet of a client's house. It turns on every time the door is opened, and shines into the dark closet for 30 seconds after movement is no longer detected. He bought this thing last year, and I installed it soon after(assuming that it either wouldn't work 90% of the time, or that it would malfunction within a few weeks). I was pleasantly surprised, as most of the many, many cheap devices he buys online either don't work at all, or are largely ineffective. To be fair, out of the 2 or 3 of these lights he purchased in an online 'package deal', 1 of them WAS broken from the get-go(par for the usual course).
So it's 4 initial brand name alkaline batteries lasted like 6-7 months. I installed 4 new alkalines and recorded the date once again. Roughly 2 months later, it became dim. I tested the batteries, using a tester that gives you 'bars' that show you how much charge it has left, and noticed 1 battery was much lower than all others. I installed new ones, but about 6 weeks later it became dim, and one battery measured significantly different than the other 3 again.
Now I decided to label each battery slot with a number(1-4). Sure enough it became dim about 2 months later, so I began testing the batteries. Battery #1 was at 75%, Battery #2 at 75%, Battery #3 nearly dead, with light corrosion and oily moisture in spots, Battery #4 was completely dead, with quite a lot of oily moisture covering it.
I looked for the date on these batteries, and they were dated "2026"!! I have absolutely NO idea what's going on here!
Personally I would suggest having him switch these lights cells over to NiMh rechargeable's.
Then You don't need to keep replacing the cells constantly, and You need not worry about
alkaline leakage.