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I have a Pocket Pro II shot timer that uses a 9v battery. I haven't been able to get out to the range as often this past year and therefore didn't get to use my timer as much either. I was wondering how often some ya'll have had to change the batteries in your timers and what you do with them if you aren't going to use them for a while. In the time between when I've used them they keep going dead. Do you take the batteries out? Do you take the batteries out every time or only if know you aren't going to use them for a while?

I use a CED 7000 with an integrated rechargeable Li-ion battery, so I can't comment. But this guy has been running seamlessly for many years. Many more than I would have expected...I think I bought it in 2007.

a 9 volt should be able to sit for 5-7 years in a climate controlled environment. So, unless you use it a bunch, 5 years should be good. If you are worried, pack a spare in the truck or range bag.

C-dub wrote:In the time between when I've used them they keep going dead.

Could it be the Pocket Pro II device itself? I had a phone that went, overnight, from 30 hours on battery standby to 90 minutes. Could be the device itself needs to be trashed.

I suppose it could be the device itself. The timer is kept where the temp hasn't been above 90 degrees nor has the humidity been above 60%. I would like to hear from others that use the same timer what their experience has been.

I keep spares of all battery types for lights and sights I use in a tool kit (tackle box) that always comes to the range with me.

You should always remove the battery before any time of storage. The battery will last longer. Could also risk leakage and damage if you forget to remove it.

Suggestion, use DuraCell battery if you are going to let it sit for a long time. Other brands tend to leak. When I was a pilot I had an emergency locator beacon that used D cells. Only DuraCells were approved for use. This is for alkaline only. Can not speak for other types.

C-dub wrote:I have a Pocket Pro II shot timer that uses a 9v battery. I haven't been able to get out to the range as often this past year and therefore didn't get to use my timer as much either. I was wondering how often some ya'll have had to change the batteries in your timers and what you do with them if you aren't going to use them for a while. In the time between when I've used them they keep going dead. Do you take the batteries out? Do you take the batteries out every time or only if know you aren't going to use them for a while?

We have several Pocket Pro's that we use in two matches per month. We remove the batteries between matches. Not a really sure how long the batteries last. We keep a couple of spares around. If they were all to die at once, we'd just send somebody to the Dollar General or 7-11 about a mile away for more 9 volts.....