![Amazon.com: 9v Battery Eliminator Snap Connector Conversion Adapter to 5.5mm Female DC Barrel Jack Connection Only - Replace 9-Volt Batteries Forever! : Electronics Amazon.com: 9v Battery Eliminator Snap Connector Conversion Adapter to 5.5mm Female DC Barrel Jack Connection Only - Replace 9-Volt Batteries Forever! : Electronics](https://m.media-amazon.com/images/I/61hHFTGK+ML._AC_UF894,1000_QL80_.jpg)
Amazon.com: 9v Battery Eliminator Snap Connector Conversion Adapter to 5.5mm Female DC Barrel Jack Connection Only - Replace 9-Volt Batteries Forever! : Electronics
![How to convert two 9 volt batteries into 18 volts in series with or without wires in series - YouTube How to convert two 9 volt batteries into 18 volts in series with or without wires in series - YouTube](https://i.ytimg.com/vi/0vFzwJq6OpI/mqdefault.jpg)
How to convert two 9 volt batteries into 18 volts in series with or without wires in series - YouTube
![LPT: Are you finding yourself paying for expensive power? To save yourself from paying thousands of dollars, just connect two 9-Volt batteries like shown in the picture below. The batteries will continue LPT: Are you finding yourself paying for expensive power? To save yourself from paying thousands of dollars, just connect two 9-Volt batteries like shown in the picture below. The batteries will continue](https://i.redd.it/el0a4w8uvfu01.jpg)
LPT: Are you finding yourself paying for expensive power? To save yourself from paying thousands of dollars, just connect two 9-Volt batteries like shown in the picture below. The batteries will continue
![How to Connect Multiple LED's with 9V Battery, Switch in Series Connection | Simple Electric Circuit - YouTube How to Connect Multiple LED's with 9V Battery, Switch in Series Connection | Simple Electric Circuit - YouTube](https://i.ytimg.com/vi/8CGEoHSHduc/maxresdefault.jpg)