# How to Connect 4 Batteries in Series

Connecting batteries in series is a common practice to increase voltage. By connecting 4 batteries in series, you can double the voltage output. Here’s how you can do it:

1. First, make sure your batteries are of the same type, size, and capacity. If they are not, it can lead to problems such as overcharging, undercharging, or damage to the batteries.
2. Connect the positive terminal of the first battery to the negative terminal of the second battery using a jumper wire.
3. Connect the positive terminal of the second battery to the negative terminal of the third battery using another jumper wire.
4. Connect the positive terminal of the third battery to the negative terminal of the fourth battery using a third jumper wire.
5. The remaining terminals should be connected to your load or device. The positive terminal of the first battery and the negative terminal of the fourth battery are the output terminals.

## How do you connect 4 batteries in series and parallel?

Connecting batteries in parallel is another way to increase the capacity of your battery bank. To connect 4 batteries in series and parallel, you’ll need to follow these steps:

1. Connect two sets of batteries in series, making two 24V banks.
2. Connect the positive terminal of one 24V bank to the positive terminal of the other 24V bank.
3. Connect the negative terminal of one 24V bank to the negative terminal of the other 24V bank.
4. Your batteries are now connected in series and parallel, giving you a total of 48V and increased capacity.

## Is it better to connect batteries in series or parallel?

It depends on your power needs and the capabilities of your equipment. Connecting batteries in series increases voltage, while connecting them in parallel increases capacity. If you need more voltage, connect batteries in series. If you need more capacity, connect them in parallel.

## What voltage is 4 batteries in parallel?

When 4 batteries are connected in parallel, the voltage remains the same as that of a single battery. So, if you have four 12V batteries connected in parallel, the voltage will still be 12V.

## Can you charge 4 12 volt batteries in series?

Yes, you can charge 4 12V batteries in series. When charging, it’s important to use a charger that is designed for the voltage and capacity of your battery bank. Make sure to follow the manufacturer’s instructions and safety guidelines when charging your batteries.

## Conclusion

Connecting batteries in series is a useful technique for increasing voltage, while connecting them in parallel increases capacity. By following the steps outlined above, you can easily connect 4 batteries in series to double the voltage output. If you need both increased voltage and capacity, you can also connect batteries in series and parallel. Just make sure to use batteries of the same type, size, and capacity, and follow the manufacturer’s instructions and safety guidelines when charging your batteries.

Phil Borges is a battery aficionado. He's written extensively about batteries, and he loves nothing more than discussing the latest innovations in the industry. He has a deep understanding of how batteries work, and he's always on the lookout for new ways to improve their performance.