Notice: NOT MIX USING DIFFERENT CAPACITY OR MODEL BATTERIES.
Connect Batteries in Parallel
When you connect SOK Batteries in parallel, it will increase the amp-hour capacity, the charge/discharge voltage will remain the same, but charge/discharge current will change.
For example, if you connect 2 pcs SK12V100 in parallel, the charge voltage still 14.6V discharge cutoff voltage still 10.4v, but it could accept high charge/discharge current, double than one single battery, charge/discharge current would be 100Amps/200amps.
It would be a 12V 200Ah battery bank.
if you connect 4 SK12V100 in parallel, charge/discharge current would be 200Amps/400amps.
It would be a 12V 400Ah battery bank.
SOK Battery Support connect in parallel up to 10 batteries.
Connect Batteries in Series
Notice:
1.Please note for connecting in series: If you are going to connect the batteries in series they need to be at the same State Of Charge (SOC) before they are connected.
2.SOK Battery support NOT over 4 pcs in series.(SK24V100 Support 2 pcs in series)
Connect Batteries in Series will increase the battery bank voltage, the capacity will remain the same.
For example, if you connect 2 SK12V100 in series, it would be 24V 100Ah battery bank, 24V 100Ah.
If you connect 4 SK12V100 in series, it would be 48V 100Ah battery bank, 48V 100Ah.
Connect batteries in Series and Parallel.
Notice:
1.Please note for connecting in series: If you are going to connect the batteries in series they need to be at the same State Of Charge (SOC) before they are connected.
2.SOK Battery support NOT over 4 pcs in series.(SK24V100 Support 2 pcs in series)
If you need big battery bank, you could connect batteries in series and parallel.
For example, if you need 48V 400Ah battery bank, you could connect 4pcs SK12V206 in series as one unit, and then connect 2 units in parallel, totally 8pcs SK12V206. The new battery bank will support:48V*200amp=9600W inverter.
The last, attach one photo for reference, customer connect 16 pcs SK12V206 in series and parallel.
4pcs SK12V206 in series as one unit, and then connect 4 units in parallel.
48V 824Ah New battery bank.
This is a great explanation of how to connect SOK lithium iron phosphate batteries in series and parallel! I really appreciate the clarity around how parallel connections increase amp-hour capacity while maintaining the same voltage, and how series connections boost voltage while keeping the capacity constant. The examples for creating larger battery banks with these configurations are very helpful.
One thing to always keep in mind is not mixing different capacity or model batteries, as it could cause issues. Following the guidelines for state of charge (SOC) and not exceeding the recommended number of batteries in series is crucial to ensure the system works efficiently.
For anyone looking to build a larger battery bank, using both series and parallel connections, like in the 48V 400Ah example, seems like a great way to achieve both high voltage and capacity.
By the way, if you enjoy learning about different systems and configurations while having a laugh, I recently found a fun website that mixes tech talk and humor—check it out here: allfunnypuns.com.