Customer:
I’m not an expert in this area and I’m a former customer. I’d like to ask: at what voltage should batteries used in TV remotes, air conditioning units, etc. be considered no longer usable? Below what voltage should we discard them and replace them in the device?
For example, I use VART batteries with a factory voltage of 1.5 volts. The voltage has now dropped to 1.3 volts. Are they still usable or not?
Also, why can’t these batteries be used until complete discharge - why can’t we replace them only when they reach 0 V?
Originally submitted via email support on 5 February 2024. Migrated to the forum for community visibility.
Soldered Support:
For most devices, the threshold is 1.2V. At 1.3V they’re already near the end of their working life.
The reason batteries aren’t used until complete discharge is that devices require a certain minimum voltage to operate correctly. As battery voltage drops during discharge, it can no longer supply the necessary power. Power in electrical terms is I × U (current × voltage), so if voltage drops, total power drops as well. This means the battery loses its ability to deliver the work needed to run the circuit as designed.
Think of it this way: you can calculate battery level as 100%-0% in a certain way.
Original message (Croatian)
za većinu uređaja je ta granica 1.2V. Na 1.3 su već pri kraju radnog vijeka.
Razlog zašto se baterije koriste do tog napona - uređaji zahtijevaju određeni minimalni napon za ispravan rad, a kako baterijama opada napon pri pražnjenju, ne mogu više isporučiti potrebnu snagu. Snaga u elektrotehničkom smislu je I U (struja * napon), iz čega je vidljivo da ako napon padne, pasti će i ukupna snaga - što znači da baterija će imati smanjenu sposobnost da obavlja rad koji treba kako bi se strujni krug pogonio na predviđen način.
Gledaj na to ovako, možeš računati razinu baterije 100%-0% na određen način, nadam se da je skica jasna:
Nadam se da je ovo bilo informativno
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