I tested 16 types of coin cells in the most popular LR44 format in order to understand how cheap batteries differ from expensive ones and whether they can be bought.
Alkaline batteries LR44 (aka AG13 or A76) are used in a variety of devices (children's toys, thermometers, mini-flashlights, measuring instruments). Prices for them can differ several times and I was wondering how much the capacity differs.
For the test, I ordered the two most popular types of batteries on Aliexpress - Panasonic And Hua Dao. I also ordered cheap TMI batteries, but they sent some AjMaGP instead, so there's no point in giving a link.
In Russian online stores, I bought three types of relatively expensive batteries - Energizer, GP, Robiton, as well as 10 types of the cheapest batteries.
Tested with the Chemical Current Source Analyzer Yarostanmash ASK2.5.10.8. The batteries were discharged with a current of 10 mA to 0.8 V. Two batteries were tested.
The table shows prices for one battery (these are the prices at which I bought batteries, now they are understandably higher). Flarx batteries are sold in Fix Price stores for 55 rubles as a set of 14 tablet batteries in five formats, of which only 4 are LR44 batteries. I divided the total price by 4, although this is probably not very correct.
The table is sorted by the average value of stored energy.
To my great surprise, the first place was taken by one of the cheapest batteries - Phase. It is important to understand that batteries of this brand from a different batch may show completely different results.
Energizer and GP are expected to take the second and third places. On the fourth - Panasonic from Aliexpress (it looks like it's really a real Panasonic). In fifth place are quite expensive Robiton batteries - 138 rubles for a small blister of 5 pieces (almost all other batteries are sold in 10 pieces) and cheap Cosmos.
To better perceive the difference between the remaining batteries, I will give a diagram of the average energy of the two tested specimens.
If we discard the Chinese semi-nameless Hua Dao and AjMaGP batteries, the difference in capacity between the worst and best of the tested batteries was 35%. If we compare batteries with a price of up to 13 rubles apiece, the difference between them will be about 22%.
According to the results of my test, Phase, Cosmos, GoPower, Camelion, Perfeo, Photon and Panasonic batteries from Aliexpress became the best in terms of price-capacity ratio. You can safely take those of these batteries that are cheaper.
However, other batteries (except for AjMaGP) can also be bought - the difference in capacity is not significant.
P.S. I will publish 123A lithium battery test and big AA/AAA battery test soon. Do not miss.
Peace for everyone!
© 2022, Alexey Nadezhin
For twelve years I have been writing about technology, discounts, interesting places and events. Read my blog site ammo1.ru, in Learn, Zen, Mirtesen, Telegram.
My projects:
lamptest.ru. I test LED lamps and help you figure out which ones are good and which are not so good.
Elerus.ru. I collect information about domestic electronic devices for personal use and share it.
You can contact me in the Telegram group @ammochat.
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