M series might refer to a type of lead-acid battery, commonly used in automotive applications. Lead-acid batteries are known for their reliability and ability to deliver high currents.
Lithium-ion Batteries:
Another possibility is that M series refers to a type of lithium-ion battery. Lithium-ion batteries are widely used in various electronic devices, electric vehicles, and renewable energy systems due to their high energy density.
Nickel-Metal Hydride (NiMH) Batteries:
Some M series batteries could be NiMH rechargeable batteries, which are often used in portable electronics.
Alkaline Batteries:
Alkaline batteries are common in household devices, and although they don't typically have an "M series" designation, they are widely recognized for their use in various applications.