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74V 40Ah Rechargeable Customized Li-ion Pack

32650 3.2V 6000mAh Rechargeable LiFePO₄ Cell

Prismatic 3.2V 100Ah Rechargeable LiFePO4 Cell

12V 60Ah rechargeable LiFePO₄ Battery Pack

12V 50Ah rechargeable LiFePO₄ Battery Pack

12V 30Ah rechargeable LiFePO₄ Battery Pack

12V 20Ah rechargeable LiFePO₄ Battery Pack

12V 7Ah rechargeable LiFePO₄ Battery Pack

High Temp Ni-cd Battery SC 4.8V 1500mAh for Emergency Light

74V 40Ah Rechargeable Customized Li-ion Pack

★High density for compact system integration.

★4000+ cycles at 80% DOD, 10+ years design life.

★Stable discharge from -20℃ to 60℃ for all-weather use.

★Supports up to 15P parallel for flexible expansion.

★CAN/RS485 compatible with various inverters.

★High-current power with Amphenol HVSPN R6.

Product Parameters

Product Models

Customization Support

Product Model	HWE-20F40	Battery Type	Li-ion
Norminal Voltage	74.0V	Norminal Capacity	40.0Ah
Dimension(LWH/TH)	400×230×170mm	Rough weight	22.5Kg
Cycle Life	≥3000 times	Energy	5120.2Wh
Charge Voltage	84.0V	Charge Current	20.0A
Max Charge Current	40.0A	Cut-off Discharge Voltage	55.0V
Discharge Current	90A (20min) / 150A (5min)	Max.Discharge Current	300A (≤3S)
Internal Impedance	≤80mΩ	Housing Material	Aluminium alloy
Operation Temp (Charge)	0~45℃	Operation Temp (Discharge)	-20~60℃

Product Introduction

This 74V 40Ah LiFePO₄ battery pack is professionally assembled with high-performance prismatic LiFePO₄ cells, featuring a lithium iron phosphate cathode that delivers intrinsic high safety and superior chemical stability. Surpassing traditional lithium-ion battery packs in comprehensive performance, it offers extended cycle life (≥3,000 cycles), outstanding high and low temperature adaptability (-20℃ to 60℃ discharge), and strong environmental resilience for demanding industrial and energy storage applications.

With a stable discharge platform and low internal resistance (≤80mΩ), it supports 90A continuous discharge (20 minutes), 150A for 5 minutes, and 300A peak (≤3 seconds). Standard charge current is 20A, with a maximum of 40A. The pack features an aluminium alloy housing with compact dimensions of 400×230×170mm and weighs approximately 22.5kg. Customization options are available – including capacity, voltage, communication protocols (RS232/RS485/CAN), parallel connection, SOC display, and terminals – to meet specific application requirements.

Product Models List

below are some our mature battery cell models.

Model	Battery Material	Nominal Voltage	Nominal Capacity	Internal Resistance (mΩ)	Life Cycles	Maximum Charge Voltage	Cut-off Discharge Voltage	Battery weight (Approx.)
HWE-4F5	12V	5Ah	≤120	≥4000	14.6V	10.0V	5A	0.75Kg
HWE-4F7	12V	7Ah	≤80	≥4000	14.6V	10.0V	7A	0.85Kg
HWE-4F10	12V	10Ah	≤60	≥4000	14.6V	10.0V	10A	1.40Kg
HWE-4F12	12V	12Ah	≤60	≥4000	14.6V	10.0V	12A	1.60Kg
HWE-4F20	12V	20Ah	≤50	≥4000	14.6V	10.0V	20A	3.00Kg
HWE-4F30	12V	30Ah	≤50	≥4000	14.6V	10.0V	30A	3.80Kg
HWE-4F50	12V	50Ah	≤45	≥4000	14.6V	10.0V	50A	6.00Kg
HWE-4F60	12V	60Ah	≤45	≥4000	14.6V	10.0V	60A	7.20Kg
HWE-4F100	12V	100Ah	≤20	≥4000	14.6V	10.0V	100A	12.0Kg
HWE-4F200	12V	200Ah	≤15	≥4000	14.6V	10.0V	100A	22.0Kg
HWE-4F300	12V	300Ah	≤10	≥4000	14.6V	10.0V	200A	28.0Kg
HWE-4F400	12V	400Ah	≤80	≥4000	14.6V	10.0V	200A	40.0Kg
HWE-8F100	24V	100Ah	≤20	≥4000	29.2V	20.0V	100A	24.0Kg
HWE-8F200	24V	200Ah	≤15	≥4000	29.2V	20.0V	100A	40.0Kg
HWE-12F100	36V	100Ah	≤25	≥4000	43.8V	30.0V	100A	37.0kg
HWE-16F50	48V	50Ah	≤50	≥4000	58.4V	40.0V	50A	30.0Kg
HWE-16F100	48V	100Ah	≤50	≥4000	58.4V	40.0V	100A	42.0Kg
HWE-16F200L	48V	200Ah	≤45	≥4000	58.4V	40.0V	100A	70.0Kg

Product Application

Tailored for large-scale energy storage and industrial high-power application scenarios, this 48V 100Ah LiFePO4 battery pack is a core energy storage unit for medium and large-scale energy storage systems, and is widely applied in commercial/industrial energy storage, solar/wind grid-connected energy storage, off-grid energy storage systems and micro-grid projects. It is also an ideal power supply solution for high-power industrial equipment such as AGV robot fleets, forklift teams, marine power systems, large UPS uninterruptible power supply systems and communication base station energy storage. With its flexible parallel expansion capability and intelligent management function, it can be customized according to different energy storage capacity and power requirements, adapting to factory energy storage, commercial building peak shaving and valley filling, remote area off-grid power supply and other various industrial, commercial and energy storage project scenarios.

Product Certification

Howell LiFePO₄ batteries have been approved by a series of authoritative certificates such as UL, CB, IEC62133, UN38.3, CE, Rohs, Reach, EU, BIS, KC, 3C, BSMI, PSE, CTIA, UKCA, WERCS and so on. All products comply with international and domestic battery industry standards, with reliable quality and complete after-sales guarantee.

Product Shipping

Howell batteries can be used in various electronic products, including industrial products, such as Bluetooth speaker, Auto electronics, GPS, Digital products, Portable DVD, Tablet PC, POS terminal, PDA, Two way radio, Power bank, RC toys, Medical device, Electric bike, Electric scooter, Solar Street Light, Security Products, Solar&wind Energy Storage System, etc.

Move beyond standard batteries that force you to compromise. We specialize in fully customizable battery solutions engineered to fit your exact specifications.

Whether you need a precise form factor to slip into an innovative design, unique voltage and capacity for peak performance, or specialized connectors for seamless integration—we make it possible. From compact wearables to robust industrial equipment, our engineering team collaborates with you to develop a battery that powers not just your device, but your ambition.

Ready to Power Your Unique Project? Contact our technical team today to start your custom battery solution.

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