Shaped Cells

Custom-shaped for Maximum Efficiency
Grepow customizable size battery is designed to fit into any and all spaces in a product. In order to provide the best efficiency, Grepow batteries can be made to fit into even unused spaces. With our proprietary formula and high discharge-rate technology, you can maximize the run time and use of your product.
We specialize in custom, semi-custom, and off-the-shelf batteries, and we've been in the industry since 1998. With over 200 engineers and 3,000 workers in our factories in China, we are confident in our experience to deliver outstanding products.
In addition to the research and manufacturing done in our own factories in China, we provide support from our warehouses located in California, U.S.A. and Korschenbroich, Germany.
  • 3000+ Skilled workers
  • 20+ Years of Experience
  • 150,000 Factory Size
  • 200+ Professional Engineers


There are limitless applications for custom-made Grepow batteries. From wearable devices to IoT, the potential is endless. Just some of the products that we can customize batteries around are below.


Smartwatch, smart bracelet, smart glasses, AR/VR, smart helmet, Bluetooth headset, hearing aid, smart belt, smart clothing, heating apparels, smart ring, intelligent jewelry, smart shoes, heating insoles, etc.


Hearing aids, infusion pumps, ventilators, rehabilitation equipment, blood glucose meters, external pacemaker, ventilator, monitor, oximeter, beauty and massage fitness equipment and so on.


Military equipment, GPS tracking sensor, IoT devices, smart display card, OTP card, BLE credit card, fingerprint card, active RFID, TEMP. patch, electronic pen, bicycle lights, LED, etc.

shaped Batteries and shaped batteries application


Cutting edge chemistry. Good safety performance customizable dimensions small polymer battery.

  • Long cycles life

  • Performance under low temperature

  • Performance under high temperature

  • Charge Rate

Long cycles life
Long cycles life
Discharge Charateristic At Various Temperatures
Electrical Performance - Cycle Life
High tem. discharge curve
Excellent charge performance
Excellent charge performance


Grepow is in compliance with international standards to ensure safety for all applications.
  • Electrical Abuse Test

  • Environmental Abuse Test

  • Mechanical Abuse Test

Tests Method Standard Result
Short-Circuit Test Test at 25°C/55°C after the battery is fully charged No fire, no explosion. The external temperature of the battery is ≤150°C PASS
Over-Charge Test Discharge the battery to 3.0V, then charge it to 4.8V with 3C last for 7h No fire, no explosion. The external temperature of the battery is ≤150°C PASS
Over-Discharge Test Discharge the battery to 3.0V, then reverse charge the battery with 1C, set the voltage to 5V No fire, no explosion. The external temperature of the battery is ≤150°C PASS
Grepow shaped battery certifications

Fast Charge Ability

Grepow shaped batteries have adopted the stacking technology while applying Grepow's unique high power electrode formulation and manufacturing process, the batteries of fast charging and discharging at different rates can be designed. Grepow is the largest manufacturer for the Chinese high magnifying power lithium polymer battery, the fast charging is based on the high power cell, and it is also one of the Grepow's core technology. It has the following advantages:


Here is a test case of the bending performance of a shaped battery:Charge the battery to 3.83v and fix the battery to the surface of the white PVC card. Fix the cell pole card to the bending and torsion tester, 15 degrees forward and backward, and 30 degrees total distortion, for bending and torsion test.

After the bending and torsion test of the 0.45mm ultrathin cell for 9000 times, the surface of the cell was folded and the internal pole sheet had creases. The internal resistance increased by about 45%. The voltage before and after the bending and torsion basically remained unchanged.

Contact Now

Shaped Batteries in Low Temperature

Grepow's shaped batteries can be made to operate in environments with low temperature of -50℃ to 50℃. Under low temperature, the batteries can achieve a lower internal resistance and, thus, a high discharge rate. Compared with traditional Lithium Polymer batteries, Grepow's batteries have broken through the discharge temperature limits of -20℃ to 60℃.

They are able to discharge over 60% efficiency at 0.2C at -40℃ and discharge over 80% efficiency at 0.2C at -30℃. When charged at 20℃ to 30℃ by 0.2C, the capacity can maintain above 85% after 300 cycles. The batteries can be ready for mass production, and they have been widely used in cold climates and military products.

Grepow low temperature shaped battery

Over 5,000 shaped batteries to choose from

Model No. Voltage (V) C-rate (C) Capacity (mAh) IR (mΩ) Weight (g) Shape Structure
(Click the icon)
GRP3030027-G2A 4.2 15 140 ≤75 3.1±0.3 Round
Grepow round battery
GRP3013020-X2A 4.2 40 37 ≤300 1.1±0.2 Rectangle
Grepow rectangle battery
GRP0849049-12A 4.35 1 140 ≤150 3.6±0.3 Ultra-thin
Grepow ultra-thin battery
GRP2524038-T1A 4.35 10 185 ≤80 4.1±0.5 Curved
Grepow curved battery
GRP2022020-11A 4.2 1 50 ≤350 1.2±0.2 Hexagon
Grepow Hexagon battery
GRP3922032-11A 4.2 1 270 ≤100 4.9±1.0 U type
Grepow U type battery

* More Shaped Battery Specification Guide

Download Now

Videos on Grepow's Custom-Shaped Batteries

From rectangular and straight to round and curved, any shape can be made to fit your product.

Customer Request Form

Verification code