![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
![Will connecting two batteries in parallel increase current drawn in simple led circuit? - Electrical Engineering Stack Exchange Will connecting two batteries in parallel increase current drawn in simple led circuit? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/HPEmR.png)
Will connecting two batteries in parallel increase current drawn in simple led circuit? - Electrical Engineering Stack Exchange
![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
![Amazon.com: Atoplee 20pcs 9 Volt Battery Clip Snap on Connectors Long Cable Connection Hard Shell Buckle Connector : Health & Household Amazon.com: Atoplee 20pcs 9 Volt Battery Clip Snap on Connectors Long Cable Connection Hard Shell Buckle Connector : Health & Household](https://m.media-amazon.com/images/I/71WOnRzUbpL.jpg)