Lithium Ion Battery 11.1V 3.5Ah Li-Ion Pack Custom OEM Service

Nominal Voltage
11.1V

Nominal Capacity
3500mAh

Energy
38.85Wh

Lithium-ion Battery Pack

Lithium Battery 11.1V 3.5Ah

Dual-Jack Output for Seamless Charge & Discharge

This 11.1V 3.5Ah module employs premium 3500 mAh 18650 cells with a 1C (3.5A) continuous rate and on-board temperature sensing. The 5.5 × 2.1 mm female charge jack and male discharge jack allow tool-free swapping of chargers or loads. A 4 A protection board with NTC thermistor prevents overheating and provides automatic cutoff in extreme conditions. Measuring just 56 × 19.5 × 70 mm, it’s perfect for small UAVs, handheld analyzers, or portable lighting systems.

Tailored Engineering & Wholesale Support by Himax

From custom jack types and PCB layouts to white-label branding, Himax delivers full-spectrum customization. Benefit from tiered discounts, MOQ-friendly pricing, and technical consultation for design verification and regulatory compliance.

Specifications

11.1V 3.5Ah Lithium-ion Rechargeable Batteries Manufacturer
Nominal Voltage
11.1V
Nominal Capacity
3500mAh
Energy
38.85Wh
Charge Voltage
12.6V
Discharge cut-off voltage
8.4V
Charge Method
CC/CV
Standard Charge Current
0.7A
Max. Charge Current
1.75A
Standard Discharge Current
0.7A
Max. Continues Discharge current
3.5A
Cycle Life
1000 times
Dimension
Max. 20.5 x 114 x 73 mm
Weight
330g
Storage Temperature
-10°C~45°C

Frequently Asked Questions

Lithium ion battery pack answers, if you do not find the answer you are looking for, please contact us. We’ll get back to you within 24 hours.
1. How do the dual jacks work?
The female 5.5×2.1 mm jack is for charging, while the male jack is for discharging—allowing tool-free swapping of chargers and loads.
2. What temperature protections are included?
An onboard NTC thermistor plus a 4 A BMS automatically cuts off if cell temperature exceeds safe limits.
3. Can I request different jack sizes or connector types?
Yes—Himax’s OEM service can swap to your preferred jack dimensions or connector style under wholesale terms.
4. What is the pack’s expected cycle life?
With 3500 mAh 18650 cells and quality BMS, you can expect over 500 cycles at 80 % depth of discharge.
5. How can I get a quote for mass production?
Email Himax with your specs and quantities to receive a detailed quotation and volume discount schedule.

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