Grepow Rechargeable Li-lon Button Cells Solutions for High-tech Applications

Grepow has provided dedicated energy solutions for high-tech applications in bluetooth headsets for smart phones, notebook bridging function, body shaping and training sensors, medical and health care equipment, wireless sensor and network infrastructure and many more. For all these applications, Grepow offers a range of Lithium-Ion button cells and battery assemblies in diameters from 7.8 - 24 mm with 6.5 mAh to 210 mAh.

Fig.1

Product Highlights of Grepow Rechargeable Button Cell Batteries

●Multiple patented innovations

●Wide capacity range

●Low internal resistance

●For discharge currents up to 10C

●Fast charge capability: ready to go in 12 min.

●Long life expectancy

●Excellent charge & discharge characteristics

●Safe & reliable (UL and IEC recognition)

●Smaller designs and lighter products for increaseduser comfort

Applications of Grepow Rechargeable Button Cell Batteries

Grepow rechargeable button cell batteries areespecially suitable for modern electronic applications such as bluetooth mono/stereo headsets, sensors for fitness/sport/healthcare, smart watches wearable technology, smart car keys and many more. These cells are the ultimate power source for your electronic devices and make your products smaller, lighter and more attractive.Grepow rechargeable coin cell provides outstanding performanceand reliability, excellent qualityalong with very safe operation.

●TWS headset

●Fitness tracker/Smart watch

●Smart key/Key fob

●Smart patch

●Health monitoring

●Sleepbuds

●Energy harvesting

●Sensors (loT security, medicalindustry)

●Gaming, AR/VR

Grepow Rechargeable Li-lon Button Cells Specifications

The Grepow rechargeable button cell is available in two different chemistries, different diameters and different thicknesses.

LCO Rechargeable Li-lon Button Cells

●Nominal Voltage: 

Version RX: 3.7V

Version FX: 3.8V

Version GX: 3.85V

Version NX: 3.9V

●Max. charging Current: 5C

Version X1: ≤ 1C

Version XR: 1C-3C

Version XN: 5C

●Product Specifications Table

Table.1

NMC Rechargeable Li-lon Button Cells

●Nominal Voltage: 3.7V

●Max. charging Current: 1C

●Product Specifications Table

Table.2

Model Number

The model numbers are two uppercase letters and a figure consisting of four digits.The version number consists of two letters or figures as shown in the example.

Fig.2

Grepow Rechargeable Coin Batteries Charging Performance

The Grepow rechargeable button cell series can be charged with different charging rates and procedures. ln order to find the best solution for the various applications please see the different options below.

Here are the charging curves of the Grepow 3.7V rechargeable button cell at 1C, 2C, 3C, and 5C rates.

Fig.3

Charging Procedures Comparison

An overview about the different charging procedures with the related time and charged capacity can be found in the table below. At a fast charging rate of 5C, Grepow coin cell only takes about 12 minutes to charge to 90% capacity.

Table.3

Grepow Rechargeable Coin Batteries Reliability and life expectancy

Grepow coin cell batteries provide outstanding cyclelife performance. All cell types have a cycle-life whichis greater than 1000 cycles with a remaining capacity of>80 % of its nominal value when new. Even at elevatedtemperature and higher discharge currents the Grepow button cells show excellent performance. This will provide extended battery life even after daily usage and in high consumption applications. The graphs show thedischarge performance of the 3.7V coin cells. For the other types the remaining capacity can be calculated bypro rata (see y-axis).

Fig.4

Conclusion

Grepow provides dedicated energy solutions for high-tech applications. The Grepow rechargeable coin batteries have the smallest dimensions, outstanding mechanical stability and highest energy densities which make the miniaturization of the latest wearable devices possible. Our concepts for an independent power source always make a difference thanks to their durability, reliability and innovative possibilities. The demands for battery solutions of the future are clear, smaller, lighter, safer, more energy and fast charge. We keep pace. Our battery solutions open up new horizons for designers and engineers toempower more independence.

As experts in battery development and electronicswe realize customer-specific, tailor-made energy solutions as well as the necessary connections optimized for design and application. From various wired options to thin wires to differenttag options, we are able to offerthe right solution for every need. Our globally operating design-in teams assist in designing your battery solution. Our fast and flexible order production allows us to deliver your individual batteries worldwide at short notice in line with yourrequirements.