Engineer Mohammed who has been tinkering with electronics for more than 12 years has created a coin cell battery charger capable of charging LIR2032 and LIR2025 coin cell batteries.
“I make a lot of coin cell powered projects and use the LIR2032 batteries quite regularly. The rated cycle of the LIR batteries are 500 cycles but in reality, it does not last that long. I did a bit of research and found out that the cheap Chinese charger was the culprit. Another thing is that you need to insert two batteries at the same time to charge. The voltage and charge of two batteries will be different and this will eventually ruin one of the batteries.”
Watch the demonstration video below to learn more about the coin battery charger, which is now available to back via Kickstarter with bare bone kits available from just AU$12 or roughly £7. With worldwide shipping expected to take place during August 2019.
“A lithium battery should be charged in three stages. If the battery voltage is less than 2.9V then it needs preconditioning. The battery is trickle charged. This phase brings the battery voltage up to a safe level for full current charging. Then a constant current 30mA full-throttle charge and finally a constant voltage trickle charge to keep the battery topped up.“
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