The Mayak M15 can operate for quite a long time on a single set of batteries. After that, they need to be replaced. To figure out which batteries are needed, you'll need to disassemble it. To do this, remove the six screws on the back panel and remove the cover.
So, under the hood, we see a micro board with a SIM card and two 3-volt lithium batteries lying next to each other. Or as they're called, CR123AThey are cylindrical and elongated in shape.
A new set of 2 batteries lasts for approximately 1 month of device wake-up.
Key characteristics of the M15 beacon battery
Diameter 16.5 mm
Length 34.5 mm
Voltage 3 volts.
Type - lithiumnon-rechargeable.
They operate at temperatures from -40 to +60 degrees Celsius.
Country of origin: China, Japan, USA.
Instead of the standard power source for the M15 beacon, you can use batteries 16340 3V. The main advantage is that you can recharge them multiple times. Ultimately, there's a slight cost benefit.
So, if you're wondering what kind of batteries the M15 beacon uses, it's a 123A, 3-volt battery. These batteries will last up to a month. However, they sometimes run out of power in just two weeks. The weak point of this beacon is its power system.
