Can I use Two battery of 9V batteries for 2WD arduino car? It show not enough power

Using Arduino Motors, Mechanics, Power and CNC
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Hi, I need confirmation. Right now, I using two 9volt batteries and combine it together to 18volt. I know that Bridge only need 12volt. But when I running it, it looks like it not enough power. Need help asap thank you. Can someone explain why AA batteries more suitable than 9V batteries?

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Those types of 9V batteries have very little current supply capabilities. By using those batteries your project is running normally.

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It's about current not voltage.

This is not and installation or troubleshooting issue

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Meaning - "As well as it could with that."

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sorry about that

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How about I change it with Lipo lithium battery 11.1V 3s 25C 1500mAh . Is this okay for my project. Any suggestion please.

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@nazrulalzam, your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advice on) your project :wink: See About the Installation & Troubleshooting category.

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https://forum.arduino.cc/t/should-i-buy-this-batteries-for-my-arduino-car-project-with-3-extra-servo-motor/1000378

Is the new topic.

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Hi, I would like to have some suggestion from you guys. I make a mistake by using two 9volt batteries and combine it together to 16volt. It was a lot of voltage but low current. So I would like to ask does - lipo lithium battery 11.1V 3s 25C 1500 mAh enough for this project. Like I said I will add on 3 more MG996R servo motor.

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Thank you for reply and helping me.

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Your two topics on the same or similar subject have been merged.

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Thanks to all those who helped and added to this list.

Thank you.

1 Like
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Very likely.

To be sure create a power budget; how much is your load(s), i.e what current will the motors draw, what other loads.

What current can the batteries supply, if that is more than you load total, plus a margin then you are OK.

1 Like
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