C rate is a unit to declare discharging or charging current value.
It can be calculated by the following formula:
C rate (C) = Charging or Discharging Current (A) / Battery capacity (Ah)
Also, expected work time of battery can be calculated as below:
Work hour of battery = Battery capacity (Ah) / Discharging current (A)
Normally, 1C is known as a one hour discharging; 2C means 30 minutes discharging.
For example, for a 1000mAh capacity battery, it can be different C rates via different design.
Motoma provides mature high rate lipo batteires via different negative electrode material and strict process control , including 2C, 3C, 4C and 5C rate discharging solutions.
Product Specification
| Battery model | LIP502646 |
| Nominal voltage | 3.7V |
| Nominal capacity | 620mAh |
| Minimum capacity | 620mAh |
| Charging voltage | 4.2V |
| Standard charging current | 124mA (0.2C) |
| End current | 6.2mA (0.01C) |
| Max. charging current | 310mA (0.5C) |
| Standard discharging current | 124mA (0.2C) |
| Max. discharging current | 3100mA (5C) |
| End voltage of discharge | 3.0V |
| Dimension of cell | 5.0*26*46mm |
| Charging temperature range | 0~45℃ |
| Discharging temperature range | -20~60℃ |
| Connector | Molex, JST connectors etc |
| Protection Circuit Module (PCM) | Overcharge protect,over-discharge protect, over current protect, short-circuit protect,temperature protect |
| Warranty life | 12 months |
FAQ
- We are interested in 3C rate lipo battery, can you provide samples to us to test? What’s the lead time?
Sure, normally, we can provide 3~5pcs samples to clients to test, it takes around 15~20 days to produce the hand-made battery samples if no molds in stock. - Does Motoma produce lipo battery with higher than 5C rate?
Sorry, we don’t’ as we produce the lithium polymer battery via winding process; for the lipo battery higher than 5C rate, normally, they are produced via lamination process; we are different kinds of lipo battery factories. - What kind of high rate lipo battery projects do you have experience with?
So many; high rate lipo battery is one kind of our mature technology, clients need high rate lipo as their device requires a big discharging current of the battery when using, such as romote medical device, IOT device, breast pump, GPS, Printers… - Can you customize high rate battery for us?
Sure, 3.7V LIP502646 620mAh is just a reference part number, we can design the battery based on your application. - What parameters do you need to design the high rate lipo batteries?
Please feel free to send email to info@motoma.com, our sales engineers will contact you to check technical questions, then our R&D design the battery for you. - Do you protect clients’ IP?
Yes, always, please feel free to send DNA to us to sign it.
Certificates
UN38.3, MSDS, IEC62133, CB, KC, BIS, PSE, UL1642, UL2054, Reach, RoHS etc.
