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.
Typical applications
Romote medical, electrocardiograph, IOT device, breast pump, GPS, Printers, smart wearable, electric tools, juicer, agricultural water pump etc.
Certificates
UN38.3, MSDS, IEC62133, CB, KC, BIS, PSE, UL1642, UL2054, Reach, RoHS etc.
