Connecting batteries in series is required if power inverter, solar hybrid inverter or UPS requires a multiply of battery voltage to work. For example, an inverter designed for 24V batteries require you to connect two 12V similar capacity batteries in series (2x12V = 24V). You may also connect lower voltage Maintenance free, VRLA, Flooded lead acid or Lithium batteries for example with 24V inverter you can connect twelve 2V similar capacity batteries in series (12x2V = 24V) or four 6V similar capacity batteries in series with it (4x6V=24V). Commercially connecting smaller batteries in series is also economical as then you can just replace single faulty battery in pack without changing the whole battery pack which would cost you much more money on maintenance.
Before connecting batteries with inverter or UPS, check its specifications to make sure what battery voltage and battery type it can accept. Never connect more batteries in series than acceptable voltage. For example, connecting three 12V batteries in series with 24V inverter will damage it. Similarly you can not connect single 12V battery to a 24V inverter. It won’t work.
We have published diagrams for connecting two, four, six, eight, ten or twelve batteries in series with inverter, solar inverter or UPS. Make sure to connect correct batteries with your power backup devices.
Connect 2 Batteries in Series with Power Inverter or UPS
2 Batteries Connected in Series with Power Inverter / UPS – Wiring Diagram
Connect 4 Batteries in Series with Power Inverter or UPS
4 Batteries Connected in Series with Power Inverter / UPS – Wiring Diagram
Connect 6 Batteries in Series with Power Inverter or UPS
6 Batteries Connected in Series with Power Inverter / UPS – Wiring Diagram
Connect 8 Batteries in Series with Power Inverter or UPS
8 Batteries Connected in Series with Power Inverter / UPS – Wiring Diagram
Connect 10 Batteries in Series with Power Inverter or UPS
10 Batteries Connected in Series with Power Inverter / UPS – Wiring Diagram
Connect 12 Batteries in Series with Power Inverter or UPS
12 Batteries Connected in Series with Power Inverter / UPS – Wiring Diagram
Important:
– Do not connect different voltage batteries in series. Make a series pack of similar voltage batteries only.
– Do not connect different capacity batteries in series. Connecting different capacity batteries in series will result in incomplete charging and premature failure of batteries.
– Do not connect multiple batteries in series that will result in higher voltage than what inverter or UPS can accept.
Lee Jones
I have 12 6volt batteries. How should i hook them up for a 12v or 24v system ?
Talal A.
Connect two 6 Volt batteries in series to make 12 volts. Connect 4 in series to boost voltage to 24v.
Danil
How do I connect 15 batteries in series
Unin M
Sir,
Please what is the best way to connect 8 batteries on 5000w inverter (48V)
Thanks
Talal A.
Connect 4 in series and individually connect 4 in parallel to those 4 connected in series
Farid Ahmad
Sir I have a 48V inverter. and the batteries I require are 2, 12V batteries. can they be connected together or I just have to make my batteries 4 in number to match the 48V inverter?
Talal A.
Connect 4 of them in series. 12v X 4
Mirza
I’m having inverex VM3 3.2
Can use it only as UPS without using SOLAR panels supply due to some issues unable to use solar panels
chukwuemeka Emmanuel
Must you use an inverter please explain
Phil Baerg
How do I safely disconnect my Battery pack
I have 8 6Volt battery wired in series/parallel.
I want to remove and dispose of them and don’t know which cables to disconnect first and what order
Talal A.
No order is required. Just start pulling off the terminals.
Rejman
Sir I have 10 batteries ..4 battery dry 200ah other 6 are 180 ah. how can I give connection to them. In series I connected but it’s becoming short circuit
Talal A.
You can’t connect different capacity batteries in series.