PGSONIC 20 Pack CR2450 3V Lithium Coin Battery

Work great- I keep them on hand. Sometimes they expire before I use them all, but the price is so low. They are still a great value.

I have tested these batteries in depth over the last two years and here is what I've come up with versus Energizer version of these same batteries. What I tested them in: Garage door openers, car key fobs and remotes, garage door sensors for alarms, a small flashlight, a headlamp, a handheld radio, couple of other small household remotes etc. A few caveats: All batteries were as fresh as I could get them. Straight out of the packages. The Energizer were the best lithium ones that energizer sells. These batteries were all put straight into use except for the ones I used for shelf testing. 1. In terms of voltage, they are nominal 3V usually starting around 3.3 or so. Some however started lower, even out of the same package, some were ~3.3 other were as low as 3.0 which is starting to show age. Every single Energizer I tried was near ~3.3 Volts. Very little variability with the energizers. 2. When being used in lightly used applications, say a garage door remote, these batteries do fine although the do not last as long as the energizers meaning the mah is a bit less. 3. When shelf testing (Just leaving them on the shelf unused) these batteries deteriorated much quicker than the energizers. After 2 years the energizers showed no detectable degradation and a majority of these batteries showed some sort of degradation just sitting on the shelf while a whole 10% were fully dead with another whole 10% basically still at full charge. 4. In heavy drain applications, say a really bright led headlamp, these things die quick in comparison to the energizers. My overall testing showed: 90+ mah (usually around 92 for the Energizers) and around 64 mah for these batteries. Bottom line: Are they worth it? In my opinion yes, here is why: They cost 1/3rd as much but you are getting over half the capacity. Yes you have to change these batteries not quite about twice as often as the energizers but if it's easy, the price per mah can't be beat. If you need these for a long term stand-by or want to install them in something you want to change as little as possible, use the Energizers or Duracell or the like. Far more expensive, but last longer. For a critical device of some kind, I'd use Energizers or Duracell. For an every day device, I'll use these all day, twice on Sunday. Although I did get a couple that were marginal right out of the package, taking those into account, but accounting for price, how long some of them actually did last, I found this: If you test them first, and put in the ones that have close to 3.3V you'll find they last about 75% of the time the Energizers do. These batteries can be hit or miss, but what do you expect for the price? These are a good buy if you know what you're getting into.

What can I say? They’re batteries and the work for great price. We bought them to replace batteries in little imitation candles. Gots lots of batteries left over to replace as needed.

Needed these batteries for a couple different things. I went with the generic brand because the batteries last a decent amount of time and its a large quantity that I can replace the battery.

I have happily used these for candles for years. They work great but the packaging changed. They are child-proof and you have to cut each battery from the packaging. I see the reason but it is annoying.

I’m using these for my pet door sensor on their collar. It’s a good enough of a value to replace them every so often before the pet is trapped inside or outside in the cold or heat.

I recently bought this and I’m really glad I did. It arrived on time and was well-packaged. The quality feels solid and it works exactly as described. Setup was straightforward and I’ve been using it regularly with no issues so far. It does what it’s supposed to do and feels like good value for the money. I’d buy it again and would recommend it to others looking for something reliable.

All those weird little devices, sensors and remotes use an assortment of batteries, so of course I tend to purchase these in a bulk package to keep on hand. Batteries are exact size replacement for cr2450 of major brands, but at a more reasonable cost. I seem to get the same length of use as compared to the major brands too.

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