ER14505

This is an uncommon battery item required primarily for special electronic equipment that calls for a size AA battery that produces 3.6 volts instead of the much more common 1.5 volt size AA batteries. It is also unusual in that it involves a battery chemistry using lithium ions. While I have had my pack of 4 batteries for only a month, so far the one I am currently using is doing exactly what I need and I am hoping each battery lasts for several months before a replacement is needed, but obviously that depends on how much power your instrument draws from the battery. I doubt it would be wise to use a 3.6 volt size AA battery in place of your 1.5 v AA flashlight batteries, and I suggest you don't try that. These are not rechargeable, so you'll have to discard the old one when it no longer works. That brings up a question for which I currently have no answer - can the batteries be discarded the same as common AA 1.5 volt batteries, namely in standard landfill garbage? The 3.6 volt batteries do not mention disposal issues so it probably would be best to ask your area representatives in charge of electronic items disposal if you can simply treat them like standard AA batteries, or if they have a special place you can drop off lithium batteries for recycling or special disposal. I found no supplier of the 3.6 v lithium batteries in my community but if you can find a local source of them, those folks might have an answer for you on appropriate disposal.

I bought a 4-pack on 11/23 and it lasted almost a year with fairly heavy diving. About a year later I started getting intermittent low battery warnings on a liveabooard, doing 4 dives/day for 4 days in a row. I swapped it then. But took the old battery home. After a week or so of storage the "old" battery it was still testing pretty good.These are funny devices. They store a lot of energy, but they have high internal resistance so they deliver it slowly. Store unused batteries in the freezer until needed. (warm them back up to room temp before use) They claim a 10 year shelf life, but I'm skeptical. Better to not buy more than you can use in a few years. (I have a 5 year old SAFT cell that was never installed but was stored at room temperature and it shows very high internal resistance now)That's not a criticism of this mfg or SAFT. It's inherent to this type of battery chemistry.

Used this in an heating oil tank monitor. The device reported it "depleted" as soon as I installed it, so I got zero useful life out of it.

These worked perfectly.

Not inexpensive, works! lifetime?

Didn’t even realize that the photocell opposite the control box was battery powered. Gate quit working and I had to call installer and he suggested to replace these batteries. Appears they last about 1-1/2 yrs. Simple to install and get it back going.

Great replacement for Saft . Economical value.

Great replacement battery.