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TDRFORCE 23A 12V Alkaline battery for Car Remote Control

Using TDRFORCE’s 23A 12V Alkaline battery

“Car Remote Control” Tracks a Whole Year.

With a super microcontroller, this “Key” of Car Remote Control ekes out an incredible runtime from a 23A 12V Alkaline battery,and Has a 20-Years Battery Life.

23A battery 12V Alkaline is very popular. 23A battery or A23 batteries provide a nominal voltage of 12V. These cylindrical cells use alkaline chemistry and have a diameter of 10.5mm and a length of 28mm.

It is single use batteries, typically used in Doorbell, Alarms, Car security alarms,remote car locking fobs, calculators and electric lighters.

The other model code for this 12V A23 batteries are 23A, 23GA, E23A, GP-23A, GP23A, K23A, L1028, LR23A, LRVO8, MS21, V23, V23GA,MN2 and VR22 batteries.

You can choose to pack pcs or 5PCS 23A Batteries in Blister Pack give consumers a low cost and reliable power.

23A 12V Alkaline cell battery for Car Remote Control


Product selling point:
Low self-discharge, longer storage time
health and environmental protections
Leak-proof technology, safe and durable

Peter who had 20 years experiences in car electronic industry has upcycled a super key for car — using a super microcontroller to deliver a racing car 20-years runtime from a single 23A battery.

“We use a lot of 23A batteries in the winter to light our flameless candles so this is a great buy for us.
TDRFORCE batteries are the best in our experience,” Peter explains. “These batteries were a great value pack.
reasonable price and good past experiences with these batteries.”

The heart of the microcontroller is, of course, a standard digital car key, powered by one 23A battery. To this, Peter has added a super Pro Mini microcontroller board with an external real-time key module — replacing the signals from the remote car controller which would normally see the key ticking once per second, extending the time it takes so that one revolution of the hour hand will take an entire year.

A simple paper cover for the key face lets you read the situation of the day using the minute hand — with the Arduino coded to correctly advance the hand for months shorter than the full 31 days of a complete rotation — but it’s the power management that makes the project stand out. The microcontroller is underclocked from its default 16MHz to just 1MHz, which allows it to run from the key’s 12V battery — while having the handy side-effect of also dropping its output logic to a key-friendly 12V.

Coupled with the removal of the board’s voltage regulator and LEDs and a low-power sleep between “ticks,” the key can run for some considerable time — an estimated 20 years, if fitted with a 23A battery. “Although the current draw is significantly low, alkaline batteries have a shelf life of 10-15 years,” Peter admits. “It would be interesting to see the real-world battery life but would have to wait for a long time though.”

The full project write-up, including source code and wiring instructions, is available on TDRFORCE’s batteries website.

23A 12V Alkaline button battery

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