How To Remove 9v Battery. Replace the sliding case back onto the battery pack and place it. Assuming your battery capacity is 500mAh you need a current of 50mA to recharge it.
When installing the battery in your alarm make sure they match the same polarity in the battery drawer. It doesnt make sense. Why I hate 9 volts.
Why I hate 9 volts.
9v Battery Eliminator Kit - 9v DC Adapter Battery Eliminator Replace Your 9-Volt Batteries with Wall Power Supply Adapter and Save 100s of Dollars by not having to replace expensive 9v Batteries in Toys Walkie Talkies Transistor Radios and Virtually anything powered by 9 Volt Batteries. Why I hate 9 volts. They burn out your batteries if you leave a cable connected. Next this is how you charge a 9V NiMH battery with a 12V charger.
