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-40°C Discharge Range · LiFePO4

Charges at
-30°C No Heater Required

OEM-ready LiFePO4 packs that charge at -30°C without heating elements and hold over 90% capacity down to -40°C discharge. Trusted by solar, cold chain, and arctic robotics partners worldwide.

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-40°C Verified
15+ Years Experience
24h Quote Response
Sample Available
6 International Certifications

Professional Low Temperature LiFePO4 Battery Manufacturer

Industry-leading expertise in extreme-environment power solutions

Custom Design

Tailored battery solutions engineered to your exact specifications and form factor requirements.

R&D Excellence

15+ years of research in extreme-temperature battery chemistry and thermal management.

Integrated BMS

Advanced battery management systems with cold-weather optimization algorithms.

Quality Certified

ISO 9001, UN38.3, IEC62133 certified with rigorous testing protocols.

Battery Performance Testing System at Wiltson Energy low-temperature LiFePO4 battery manufacturing facility

Battery Performance Testing System

Precision battery validation with advanced charge-discharge cycling and thermal testing equipment.

Wiltson Headquarters at Wiltson Energy low-temperature LiFePO4 battery manufacturing facility

Wiltson Headquarters

Modern manufacturing facility with advanced production capabilities.

Battery Assembly Line at Wiltson Energy low-temperature LiFePO4 battery manufacturing facility

Battery Assembly Line

High-efficiency battery pack assembly with rigorous multi-stage quality control.

Extreme Cold Performance

See how Wiltson Energy low-temperature technology outperforms standard LFP batteries in harsh environments.

Discharge Capacityat -40°C (-40°F)

Wiltson LT≥90%
Heated Pack0%

Heated packs cannot discharge at -40°C without pre-heating.

Charging Timeat -30°C (-22°F)

Wiltson LT2 hrs
Heated Pack7 hrs

Heated packs require 5 hrs heating + 2 hrs charging.

Discharge Rateat -40°C (-40°F)

Wiltson LT3C
Standard LFP0.2C

15x higher discharge rate for demanding applications.

Proven Low-Temperature Battery Projects

Real-world applications of our specialized low-temperature lithium battery solutions, engineered for extreme environments and demanding performance requirements.

12V70AH -40°C Low-Temperature LiFePO4 Battery Pack — Wiltson Energy -40°C LiFePO4 battery pack

12V70AH -40°C Low-Temperature LiFePO4 Battery Pack

Cell ConfigurationIFR26650-3.2V-LT3200mAh
Nominal Voltage / Capacity12.8V / 71.4AH
Operating TemperatureCharge: -30~60°C, Discharge: -50~60°C
Low-Temp Performance≥90% capacity @ -40°C
Dimensions / Weight888×84.8×82.8mm / 10200g
12V6AH -40°C Low-Temperature LiFePO4 Battery Pack — Wiltson Energy -40°C LiFePO4 battery pack

12V6AH -40°C Low-Temperature LiFePO4 Battery Pack

Cell ConfigurationIFR26650-3.2V-LT3200mAh
Nominal Voltage / Capacity12.8V / 6.4AH
Operating TemperatureCharge: -30~60°C, Discharge: -40~60°C
Low-Temp Performance≥90% capacity @ -40°C
Dimensions / Weight108×73×54mm / 730g
24V6AH -40°C Low-Temperature LiFePO4 Battery Pack — Wiltson Energy -40°C LiFePO4 battery pack

24V6AH -40°C Low-Temperature LiFePO4 Battery Pack

Cell ConfigurationIFR26650-3.2V-LT3200mAh
Nominal Voltage / Capacity25.6V / 6Ah
Operating TemperatureCharge: -30~60°C, Discharge: -40~60°C
Low-Temp Performance≥90% capacity @ -40°C
Dimensions / Weight138×98×80mm / 1600g
22V3AH -40°C Low-Temperature LiFePO4 Battery Pack — Wiltson Energy -40°C LiFePO4 battery pack

22V3AH -40°C Low-Temperature LiFePO4 Battery Pack

Cell ConfigurationIFR26650-3.2V-LT3200mAh
Nominal Voltage / Capacity22.4V / 3.2Ah
Operating TemperatureCharge: -30~60°C, Discharge: -40~60°C
Low-Temp Performance≥90% capacity @ -40°C
Dimensions / Weight108×67×62mm / 700g
24V10AH -40°C Low-Temperature LiFePO4 Battery Pack — Wiltson Energy -40°C LiFePO4 battery pack

24V10AH -40°C Low-Temperature LiFePO4 Battery Pack

Cell ConfigurationIFR26650-3.2V-LT3400mAh
Nominal Voltage / Capacity25.6V / 10AH
Operating TemperatureCharge: -30~60°C, Discharge: -40~60°C
Low-Temp Performance≥90% capacity @ -40°C
Dimensions / Weight178×166×77mm / 2800g
12V40AH -40°C Low-Temperature LiFePO4 Battery Pack — Wiltson Energy -40°C LiFePO4 battery pack

12V40AH -40°C Low-Temperature LiFePO4 Battery Pack

Cell ConfigurationIFR26650-3.2V-LT3400mAh
Nominal Voltage / Capacity12.8V / 40AH
Operating TemperatureCharge: -30~60°C, Discharge: -40~60°C
Low-Temp Performance≥90% capacity @ -40°C
Dimensions / Weight197×166×170mm / 5400g

Built for the World's Harshest Environments

From arctic research stations to cold-chain logistics, our LiFePO4 batteries deliver rated capacity at -40 °C — without heating elements or warm-up delays.

Global Safety & Compliance Certifications

Wiltson Energy CE certification for LiFePO4 battery packs

CE

Wiltson Energy CB certification for LiFePO4 battery packs

CB

Wiltson Energy UN38.3 certification for LiFePO4 battery packs

UN38.3

Wiltson Energy UL1642 certification for LiFePO4 battery packs

UL1642

Wiltson Energy REACH certification for LiFePO4 battery packs

REACH

Wiltson Energy RoHS certification for LiFePO4 battery packs

RoHS

Additional certifications available upon request

Calculate Your ROI

See how much your operation saves by switching to Wiltson low-temperature batteries

500 packs
1010,000
200 cycles/yr
50500
800 Wh
1002,000

Annual Heating Cost Saved vs. Heated Alternatives

$1,440/yr

Annual Energy Saved

80,000 kWh/yr

Weight Reduction

1,250 kg

Estimates based on heating element energy at ~15% of pack capacity and regional average industrial electricity rates. Savings shown in illustrative USD terms. Weight savings: 2.5 kg/pack vs. heated alternatives.

What Our Clients Say

Real results from OEM/ODM partners operating in extreme environments

Wiltson batteries maintained full capacity at -38°C throughout our Arctic deployment. No heating, no failures — exactly what we needed.

Erik LindströmHead of Engineering · Nordic Cold Chain AS🇸🇪 Sweden
We replaced heated packs with Wiltson LT cells and cut charging downtime by 70%. The 2-hour charge at -30°C is a genuine operational advantage.

Mei-Ling ChenSupply Chain Director · IceRover Robotics🇨🇦 Canada
OEM support was fast and the datasheets were thorough. Our certification team had everything they needed within a week.

Tobias HaugenProduct Manager · ArcticTech Systems🇩🇰 Denmark

How We Work Together

Our streamlined B2B process from initial inquiry to delivery

1

Evaluation

Share your requirements and we analyze your application needs.

2

Proposal

Receive a detailed technical proposal with specifications.

3

Prototype

We develop and test a custom prototype for validation.

4

Delivery

Mass production and delivery with ongoing support.

Frequently Asked Questions

Everything you need to know about our low-temperature LiFePO4 battery packs for OEM partnerships.

Our standard MOQ is 50 units for custom battery packs. For evaluation and testing, we offer sample orders of 1–10 units. Contact our team to discuss your specific volume requirements.

Yes. We provide pre-production samples within 7–14 business days. Samples are fully tested to IEC 62133 and UN38.3 standards. NRE fees may apply depending on customization complexity.

Our LiFePO4 battery packs can pass CE, CB, UN38.3, UL1642, REACH, and RoHS certifications. Additional certifications are available upon request.

Standard lead time is 4–6 weeks after design confirmation and deposit receipt. Rush production (2–3 weeks) is available for select configurations.

Absolutely. We engineer battery packs to your exact voltage (3.2V to 72V+), capacity (1Ah to 500Ah+), form factor, and connector requirements. Our engineering team will review your specs within 24 hours.

Our low-temperature LiFePO4 packs are guaranteed for discharge operation from -40°C to +60°C. Charge operation is supported from -30°C to +60°C. All specifications are verified through environmental chamber testing.

Still have questions?

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Get Datasheet + Certification Pack + Sample Proposal

Submit your requirements and our engineering team will respond within 24 hours.

No.3, Nengda Road, Shipai District, Dongguan, Guangdong, China