INR21700,samsung 40T,21700 4000mah, Li-ion 21700 Battery, 3.7v 21700 battery, samsung battery
Names | Specifications |
Type | INR21700 40T Samsung battery |
Nominal voltage | 3.6V |
Nominal Capacity | 4000mAh |
Dimension | 21*70 mm |
Mode | INR21700 |
Max.charge current | 6A |
Max.discharge current | 35A |
Charge current | Standard Charging: 0.5C |
Rapid charge: 1.0C |
Standard Charging method | 0.5C CC(constant current)charge to 4.2V, |
then CV(constant voltage 4.2V)charge till |
charge current decline to ≤0.05C |
Charging time | Standard Charging: 3.0 hours(Ref.) |
Rapid charge: 2 hours(Ref.) |
Discharge cut-off voltage | 2.5V |
Operating temperature | -20°C~+60 °C |
Storage temperature | 25°C |
Life Cycle | ＞1000 Times(80%DOD, Max 95%DOD) |
Application | Bright flashlights,mobile powersupplies,electronics nebulizers,power tools,electric logistics vehicles,special vehicles,mini-cars,electric two-wheels,etc. |
◆ Longer life compare to lead acid battery
◆ Up to 60% weight saving
◆ 100% usable capacity
◆ More energy with 1/3 smaller size
◆ Low self discharging
◆ Samsung brand high quality
◆ UL certification, CB,IEC62133 certification
◆ Easy and standard installation
◆ Eco-friendly
◆ Quality guaranteed
| 18650 | 2000mAh, 2500mAh, 2600mAh, 3000mAh, 3350mAh, 3500mAh etc. |
21700 | 2500mAh, 3000mAh, 4000mAh, 5000mAh. |
| 50Ah, 80Ah, 100Ah, 170Ah，202Ah, 302Ah etc. |
| 34615, 14505, 14250, 14335, 26500, 17335 etc. |
| BMS, nickel sheet, high temperature tape, epoxy plate etc. |
Please contact us for more options. |
--Toys, Power Tools, Home Appliances, Consumer Electronics,
--BOATS, Golf Carts, SUBMARINES, Electric Bicycles/Scooters, electric vehicles, Electric Wheelchairs,
--Electric Power Systems, Solar Energy Storage Systems, Uninterruptible Power Supplies,
--Electric Forklifts
The battery pack with different voltage,capacity can be customized and assembled according to customer's requirements.
SER Group Limited is a professional leading lithium battery producer and supplier with more than 17years history in China.
Q1. Can I have a sample order?
A. Yes, we welcome sample order to test and check quality.
Q2. What about the lead time?
A. Sample needs 3 days, mass production time needs 5-7 weeks, it depends on order quantity.
Q3. Do you have any MOQ limit?
A. Yes, we have MOQ for mass production, it depends on the different part numbers. 1~10pcs sample order is available. Low MOQ, 1pc
for sample checking is available.
Q4. How do you ship the goods and how long does it take to arrive?
A. It usually takes 5-7 days to arrive. Airline and sea shipping is also optional.
Q5. How to proceed with an order?
A. Firstly let us know your requirements or application. Secondly, We quote according to your requirements or our
suggestions.Thirdly customer confirms the samples and places a deposit for formal order. Fourthly We arrange the production.
Q6. Is it OK to print my logo on the product?
A. Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q7.Which certificates do you have?
A:We have CE/FCC/ROHS/UN38.3/MSDS ...etc.
Q8.How about warranty?
A:1 year warranty
