Damn, and I thought it was bright here in the desert...
Because I've seen people in various places claiming a battery life of 7 days, I decided to do an experiment with my unit. I put a brand new Renata battery in mine at 6:11 pm on June 18 and set the optic to 9 and left it there.
The idea is to see just how long the battery lasts with the optic set to maximum.
My dot has not dimmed. It's still obnoxiously bright to the point it casts light that's visible in a dark room.
Last edited by TCinVA; 06-25-2019 at 10:03 AM.
3/15/2016
I got my first Acro first week in April. Its not on a carry gun so it lives switched off most of the time. Battery died on the morning of June 15th. Three minutes before the briefing on stage one of a major match
Welcome to Africa, bring a hardhat.
For another data point, just read a report of an ACRO continually set to level 8 going 2 months before it started to dim.
Energizer does not make a CR1225 either. They make a 1225, but it's a different prefix than CR. I read the difference has something to do with power output, or max power output, but I'm not techy enough to articulate it more than that.
I've read A LOT of Amazon reviews on various CR1225, and I mean a shameful amount of time spent doing so. Every brand of CR1225 on Amazon has more than a few 1 star reviews stating things like "DOA" (dead on arrival), "only lasted a couple minutes", "dead after a day", or similar. Also, these are being reviewed from use in electronic thermometers, not continuous draw LED products like the Acro.
I'm beginning to think the 1225 size is simply more prone to storage drainage for one reason or another (poor manufacturing, heat, time, etc) than the batteries we are used to (CR2032/CR123a). Couple that with the meager 48mAh capacity, and I think we'll continue to see testing results all over the board, like we are in this thread. If that turns out to be the case, I think it will be difficult to determine a safe hard date for battery replacement, simply do to the variance from battery batch to battery batch.
ETA: Thank you for the Red Dot Sights subforum.
Last edited by StraitR; 06-25-2019 at 06:21 PM.
I'm not an electrician and don't know about such things but I wonder how much variance there is from unit to unit in internal resistance. Maybe some units draw fractionally more juice when turned on.
Yes. Big thumbs up on the new subforum!
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