Как выбрать батарейку в наручные часы / How to choose a battery wrist watch

The watch battery died. So what, I went to the store and bought it... no big deal. But then it turns out the watch lasted 5-6 years on the original battery, while the new one lasted only 1. You thought the battery was counterfeit or just bad. But is that really true? Does everything depend solely on the manufacturer and the quality of the battery itself? No! Tell me, did you examine the old battery? Did you pay attention to any markings other than the digital designation, such as AG4 or SR626? Probably not. Did you know that LR626 and SR626 are completely different batteries? Yes, although they are the same size, they have completely different chemical compositions. What other types of batteries do you know? Salt and alkaline—that's right. And what else? There are also silver-zinc batteries (also referred to as silver oxide)! They're used by major watch manufacturers like Casio, Seiko, and others. What's so special about these batteries? They have a capacity 2-2.5 times higher than alkaline batteries. For example, an alkaline LR626 has a capacity of 16mA, while a silver-zinc SR626 of the same size has a capacity of 28mA! But that's not all. They're also interesting because their voltage remains constant throughout their entire lifespan, at 1.55 volts. These aren't like alkaline batteries, whose voltage drops as they discharge, causing watches to run fast and then slow. Silver-zinc batteries will maintain the correct voltage of 1.55v until the very end. That's why watches with these batteries always run very accurately, right up until the very end. In the USSR, all wristwatch batteries were silver-zinc and marked SC-xxx. But the capitalists are haunted by the shadow of Uncle Scrooge. This shadow prevents them from producing only silver-zinc batteries, as they are quite expensive to produce. Therefore, they mainly produce cheap alkaline batteries, marked with the letters LR (Alkaline Manganese). These batteries are inexpensive to produce and sell for quite a high price, but watches will not run for long and will not keep accurate time. Therefore, if you want your watch to last a long time and maintain its accuracy, avoid batteries labeled Alkaline, LRxxx, or AGxx. Remember: you need batteries labeled Silver Oxide or SRxxx. For example, these: http://got.by/2ofmy9 You can join the affiliate program and earn money on YouTube using this link: http://www.air.io/?page_id=1432&aff=72