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What is a high discharge battery?

Our high-rate lithium polymer batteries use a special structural design based on a stacking process and custom electrolyte which allows for lower internal resistance, higher discharge, fast charging, larger capacity, and more. Our current battery is able to have 45C continuous discharge, pulse discharge of 150C, and 3-5C fast charging. Most consumer electronics applications only require a 1C discharge. If you require a faster charge rate, you will need a higher discharge battery. High discharge rate batteries are required for drones, robots, emergency power storage, aircraft, power tools, and anything that requires high power but lightweight.

Do you need a high rate battery?

high rate battery
Our high-rate lithium polymer batteries use a special structural design based on a stacking process and custom electrolyte which allows for lower internal resistance, higher discharge, fast charging, larger capacity, and more. Our current battery is able to have 45C continuous discharge, pulse discharge of 150C, and 3-5C fast charging. Most consumer electronics applications only require a 1C discharge. If you require a faster charge rate, you will need a higher discharge battery. High discharge rate batteries are required for drones, robots, emergency power storage, aircraft, power tools, and anything that requires high power but lightweight.

Cell Disassembly

Cell Disassembly
Advantages:

High performance in power, discharge, and life cycles due to stacking process.

Ability to achieve 150C pulse, 90C discharge for 2seconds, 45C continuous discharge, and 5C fast charging.

Provides better temperature stability and tolerance due to the allowance of higher discharge rate.

Ultra-thin characteristics, light weight, flexible size, flexible shapes, and ability to accommodate many applications.

With ultra-thin characteristics,small size,extremely light weight,High rate lithium polymer can be made into a variety of shapes and capacities of shaped batteries, thickness can reach 0.45mm;

40C Discharging Curve
40C Discharging Curve
In the figure, the battery of the same capacity continues to discharge the test curve under the same current (40C),it can be seen that the high-rate battery’s discharge voltage is high,and the voltage drop is gentle,and more capacity is released.Due to the internal resistance of the high-rate battery is small,low loss during large current discharge,so the discharge voltage platform and capacity can keep great.
50C Discharging Curve
In the figure,the pulse discharge test curves of the same capacity battery 50C5S,100C2S,it can be seen that Grepow high discharge rate battery voltage is high,can support large current pulse discharge,the discharge voltage platform remains high,and can support large current discharge in short time.
100C Discharging Curve
The above cycle life test curve shows the 1C charging of the high-rate battery of Grepow, which is discharged at 30C and 40C respectively,after 300 weeks cycled,the 30C battery discharge capacity retention rate remains above 93%,and the 40C battery discharge capacity retention rate keep above 85% ,all keep a high level.The larger the battery discharge current is,the more heat is generated inside the battery,and the attenuation of the battery will be larger,so the 40C battery discharge capacity retention rate is lower than the 30C battery.
Normal Battery VS High C rate Battery
Normal Battery VS High C rate Battery
Due to the high-rate battery use the electrode material which is favorable for high-rate discharge, the internal resistance design of the electrode is smaller than that of the ordinary battery,so the rate battery have high discharge platform,high discharge efficiency,and high output power and energy.
Fast charge curve
Fast charging battery 3C full only takes 25min, ordinary lithium battery 1C charging takes more than 80min, as fast charge curve, the charging time can save more than 60%.
Fast charge curve

Cell parameters form

Model C-rate Capacity(mAh) Distance between 2 tabs(mm) Weight(g) Internal resistance(mΩ) length(mm) Width(mm) Thickness(mm)
GRP4628045 25C 450 13±1 11.0±1.0 ≤15.0 46.5±0.5 28.0±0.5 4.4±0.2
GRP6924037 30C 450 13±1 11.0±1.0 ≤12.0 37.5±0.5 24.0±0.5 6.5±0.2
GRP6824037 25C 450 13±1 11.0±1.0 ≤15.0 37.5±0.5 24.0±0.5 6.6±0.2
GRP6616054 25C 450 7.0-8.0 11.0±1.0 ≤15.0 56.0±0.5 16.0±0.5 6.4±0.2
* Contact us for a complete list!
info@grepow.com