Very cheap Demmax batteries appeared in Svetofor stores. I checked if they are really alkaline (alkaline) and measured their capacity.
Batteries are sold in a red box, it seems that such batteries are only available in AA format.
There is no date of manufacture on the batteries, only the expiration date is indicated: 07.2026.
The manufacturer Litarc Lighting & Electronic is indicated, but most likely this is not a manufacturer, but an intermediary (the name of this company as a manufacturer is indicated on all Ergolux LED lamps). The importer is Enertrade LLC.
I tested two batteries and compared the results with previous test results. alkaline batteries GP Super, FLARX, batteries ECO-Alcaline "First price" from Galamart and salt batteries GP Greencell EHD.
To test the capacity and load capacity, the batteries were discharged in two modes:
- discharge current 100 mA to 0.7 V. The test shows what maximum energy the battery can give;
- Discharge with resistance equivalent of 3.9 Ohm up to 0.9 V. This test shows how batteries are suitable for powerful loads (toys with motors, blood pressure monitors and other medical equipment).
The diagram shows the average capacity value in mWh. Blue columns - discharge with a current of 100 mA to 0.7 V, red columns - discharge with a resistance equivalent of 3.9 Ohm to 0.9 V.
Demmax batteries belong to the ECO-Alkaline class (https://ammo1.livejournal.com/1303441.html) - their weight is about 18 g (full alkaline batteries weigh 22-23 g, salt 13-17 g), and the amount of stored energy 35-42% less than full-fledged alkaline (alkaline) batteries, but more than twice as much as the best salt batteries.
Demmax batteries are close in performance to other ECO-Alkaline batteries, such as First Price batteries from Galamart.
Such batteries can be used in devices with low energy consumption, and at a price of about 7 rubles per battery, this is beneficial.
P.S. In some traffic light stores, fake alkaline batteries are still found, which are actually salt batteries (https://ammo1.livejournal.com/1220686.html). Do not confuse!
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.
#batteries#traffic lights#test