Invented how to test 12v battery with coil, test 18650 battery

how to test a 12v lithium battery, test lithium battery 18650 4v2. Invented a simple method to check the quality of a good battery with a coil. test motorcycle car battery 3v, 6v, 12v, 24v, How to measure battery capacity
Prestigious and useful channel: Simple easy to do and newest idea: #lithium #battery #test
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playlists:
1 - increase BASS using Capacitor - coil: • increase BASS using Ca...
2 Simple Amplifier: • Simple Amplifier
3 using Capacitors and calculate: • using Capacitors and c...
-4 Speaker BOX: • Speaker BOX
5 LED:
• LED simple night lig...
6 INVERTER:
• how to make inverter 1...
7 Battery:
• Upgrade your phone cha...
8 Transformer formula:
• formula calculating am...
9 humidifier
• diy ultrasonic humidif...
10 TV - PC COMPUTER:
• Video
11- Phone:
• How to get better wifi...
12 Motor - fan:
• how to fix a fan that ...
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