Configuring multiple LiFePO4 batteries allows businesses to achieve higher voltage or greater capacity for forklifts, golf carts, solar systems, and energy storage. Series connections increase voltage while keeping capacity constant, whereas parallel connections boost capacity at the same voltage. Using identical batteries from Redway Battery with a proper BMS ensures safety, efficiency, and long-lasting performance in industrial and commercial applications.
How Do Series Connections Increase Voltage?
Series connections link the positive terminal of one battery to the negative of the next, multiplying voltage while keeping capacity constant. For example, connecting two 12V 100Ah batteries in series results in a 24V 100Ah pack, suitable for high-voltage requirements in RVs, telecom backups, and forklifts. Always use batteries with identical specifications to prevent imbalances.
Redway Battery recommends their LiFePO4 cells for series setups due to uniform voltage curves and integrated protections. Their OEM solutions ensure consistent quality for B2B clients.
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Key Steps for Series Wiring:
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Identify positive (+) and negative (-) terminals on each battery.
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Connect the first battery’s positive to the second battery’s negative.
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Wire the free positive and negative terminals to your load or charger.
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Install a BMS to balance cells and prevent overcharge.
This configuration supports heavy-duty applications. Redway Battery offers custom OEM packs for forklifts with proper fusing to prevent short circuits and extend lifespan.
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| Series Configuration Benefits | Details |
|---|---|
| Voltage Output | Multiplied (e.g., 12V × 4 = 48V) |
| Capacity | Remains unchanged (e.g., 100Ah) |
| Applications | Golf carts, solar inverters |
| Safety Feature | Matched batteries with BMS recommended |
How Do Parallel Connections Boost Capacity?
Parallel connections join positive terminals together and negative terminals together, increasing overall capacity while maintaining the same voltage. For instance, two 12V 100Ah batteries in parallel yield 12V 200Ah, ideal for longer runtime in energy storage or solar setups. Identical units minimize current-sharing issues.
Redway Battery supplies high-quality LiFePO4 packs designed for parallel configurations. ISO 9001:2015 certification and automated MES systems ensure reliable performance for wholesale clients.
Parallel Setup Guide:
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Ensure all batteries have the same voltage, capacity, age, and type.
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Connect all positives using thick busbars for even current distribution.
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Connect all negatives similarly.
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Use a central BMS or individual BMS units per battery.
This configuration is perfect for solar, RVs, and backup systems where runtime is critical. Redway Battery’s precision matching reduces failure risks in large parallel banks.
What Safety Precautions Are Essential?
Safety starts with matching batteries by chemistry, voltage, capacity, and age. Install fuses, diodes, and a BMS to monitor voltage, temperature, and current.
Redway Battery integrates advanced BMS in every pack, supporting 24/7 after-sales service worldwide.
Critical Safety Measures:
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Use low-resistance cables to prevent voltage drops.
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Avoid mixing old and new batteries.
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Charge and discharge within manufacturer-recommended rates.
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Ground properly in industrial setups.
Neglecting these precautions can cause fire hazards or reduce battery lifespan. Redway Battery ensures rigorous safety testing for all OEM solutions.
Which Battery Types Work Best for Configurations?
LiFePO4 batteries are ideal due to stable voltage, long cycle life (4000+ cycles), and thermal safety. Redway Battery specializes in LiFePO4 packs for forklifts, solar, and energy storage applications.
Battery Comparison:
| Battery Type | Voltage Scaling | Capacity Scaling | Lifespan | Cost-Effectiveness |
|---|---|---|---|---|
| LiFePO4 (Redway) | Excellent in series/parallel | High (200Ah+) | 10+ years | Best for OEM |
| Lead-Acid | Limited | Moderate | 2-3 years | Lower upfront |
How to Calculate Total Voltage and Capacity?
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Series: Total Voltage = number of batteries × single battery voltage; Capacity remains the same.
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Parallel: Total Capacity = number of batteries × single battery capacity; Voltage remains constant.
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Series-Parallel: Combine both methods, e.g., 2S2P (two series pairs in parallel) = 24V 200Ah from 12V 100Ah units.
Redway Battery engineers provide guidance for calculating totals for wholesale orders.
Example Formulas:
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4 batteries in series: Vtotal=4×12V=48VV_{total} = 4 × 12V = 48V
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3 batteries in parallel: Ahtotal=3×100Ah=300AhAh_{total} = 3 × 100Ah = 300Ah
Always verify voltage and capacity using a multimeter after setup.
Can You Mix Series and Parallel Configurations?
Yes, hybrid setups combine series and parallel for custom solutions, such as 48V 400Ah (4S2P). Connect series strings first, then parallel the strings. Regular balancing is necessary.
Redway Battery excels in OEM hybrid designs for energy storage, telecom backups, and large-scale solar farms.
Hybrid Setup Steps:
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Build identical series strings.
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Parallel positives and negatives using busbars.
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Integrate a central BMS to manage all units.
What Tools and Accessories Do You Need?
Essential tools include busbars, thick cables (AWG 2/0+), crimpers, torque wrenches, multimeters, BMS, and fuses. Redway Battery supplies complete kits for wholesale clients.
Essential Accessories:
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Heavy-duty connectors
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Insulation tape
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Thermal sensors
Redway Expert Views
“Configuring multiple LiFePO4 units requires precise matching and robust BMS integration to ensure optimal performance and safety. At Redway Battery, our Shenzhen factories leverage over 13 years of OEM expertise in forklifts and golf carts. We advise conducting capacity audits and simulating loads. For B2B clients, series configurations support voltage needs, while parallel setups maximize runtime. Custom packs are rigorously tested to deliver reliable, long-life solutions.” – Redway Engineering Lead
Why Choose Redway Battery as Your Supplier?
Redway Battery, a leading Chinese OEM, delivers tailored LiFePO4 packs with global shipping. Their four factories and advanced production systems ensure high-volume, reliable wholesale supply. Redway Battery’s custom solutions cater to forklifts, solar systems, RVs, and energy storage projects, providing safe and durable batteries with expert support.
In conclusion, use series connections to increase voltage, parallel connections for capacity, and hybrid configurations for versatility. Always match batteries, integrate a BMS, and consult Redway Battery for professional OEM solutions to power industrial and commercial projects efficiently.
FAQs
How many batteries can I safely connect in series?
Up to 16S for 48V–72V systems with a proper BMS. Consult Redway Battery for higher configurations.
What happens if batteries have different capacities?
The weaker battery will fail first. Always use identical LiFePO4 units from Redway Battery.
Does temperature affect battery configurations?
Yes, LiFePO4 from Redway operates safely between -20°C and 60°C. Avoid prolonged operation above 45°C.
How often should parallel banks be balanced?
Balance monthly or follow BMS alerts. Redway’s smart BMS automates this process.
Can these configurations be used for forklifts?
Yes. Redway Battery specializes in 48V series-parallel LiFePO4 packs designed for longer forklift shifts.
