18650 2900mAh Rechageable Lithium Battery

Model NO.: BB-18650 29E
Rechargeable: Chargeable
Brand: Samsung
Original: Korea
Battery Type: 3.7V 18650 2900mAh
Dimension: 18*65mm
Application: Electric Bike, Other Battery Packs
Trademark: Samsung
Transport Package: Standard Carton Package
Specification: CE, RoHS, UN38.3
Origin: Shenzhen
HS Code: 8506109000
18650 2900mAh Rechageable lithium battery

Specification
NO. Item Specifications
1 Nominal Voltage 3.65V (0.2C discharge)
2 Nominal Capacity 2850mAh (0.2C, 2.50V discharge)
3 Charging Voltage 4.20 ± 0.05 V
4 Nominal discharge capacity 2000mAh Charge: 1A, 4.20V,CCCV 100mA cut-off, Discharge: 0.2C, 2.5V discharge cut-off
5 Standard charge 1,375mA
6 Max. charge current 2,750mA (not for cycle life)
5 Rapid charge CC-CV, 4A, 4.20 ± 0.05 V, 100mA cut-off
6 Charging time Standard charge : 3 hours
7 Max. discharge currentTemperature cut-off 70°C

2,750mA (continuous discharge)

8,250mA (not for continuous discharge)

8 Discharge cut-off voltageEnd of discharge 2.5V ( 2.5V discharge cut-off is better in cycle life )
9 Cell weight

45.0g max.

10 Cell dimension

Height : 65.00mm max. Diameter : 18.40mm max.

11 Operating temperature(surface temperature)

Charge : 0 to 45 (recommended recharge release < 45°C)Discharge: -20 to 60 (recommended re-discharge release < 60°C)

12 Storage temperature(Recovery 90% after storage)

1.5 year -20~25°C(1*) 3 months -20~45°C(1*) 1 month -20~60°C(1*)

18650 2900mAh Rechageable Lithium Battery
18650 2900mAh Rechageable Lithium Battery
Key Application
Widely applied in  Electric Bicycle, Electric vehicle, Electric Tricycle, Electric scooter, Electric golf trolley, Electric car, Electric wheelchairs,two wheel vehicles and etc.
 
Payment Terms
1.We accept bank transfer(T/T) ,PayPal,Cash.
2.If you prefer other payment method,please contact us by email.
 
Shipping Terms
1.Samples order: sending by Express ( DHL/ UPS/ FEDEX/ TNT )
2.Bulk order: sending out by air/express/sea.
 
Warranty Instructions
1.We provide 2 years Warranty.
2.Warranty code: quality problems, defective goods can be fixed or replacement; Man-made damage, inflowing water, fault operation leading to short circuit or burning, damaged by carrier is out of our warranty.
3.Goods should be returned in original condition to qualify for a replacement or repair.
 
Advantages
1.OEM&ODM manufacture, design any of special shape, dimension and other requirements battery packs.
2.Good quality, competitive price, fast delivery, excellent service. 
3. Wonderful package, stable shipment, 100% testing and inspection before shipment to insure the quality. 
4.CE, RoHS, UN38.3, UL, MSDS certificates.
5. Quick action&response,every inquires will be relied within 24 hours.

More models:
Model. Description Weight(g) discharge
USA K2 IFR 18650P 3.2V 1200mAh 45 30C/60C
IFR 18650P        3.2V 1100mAh 45 20C/30C
IFR 18650E        3.2V 1500mAh 45 3C/5C
USA K2 26650Ev    3.2V 3200mAh 85 5C/10C
USA K2 26650P     3.2V 2600mAh 85 30C/60C
IFR 18650P        3.2V 1500mAh 45 15C
IFR 38120S        3.2V 10Ah 330 5C/8C
IFR 38120P        3.2V 10Ah 330 10C/20C
ICR 18650E        3.7V 2200mAh 45 3C
ICR 26650E        3.7V 4000mAh 82 2C
ICR 26650E        3.7V 4500mAh 82 2C
ICR26700E         3.7V 5000mAh 85 2C
SAMSUNG INR18650-13P/13L  1300mAh 44.5 10/20C
SAMSUNG INR18650-15K     1500mAh 44.5 10C
SAMSUNG INR18650-15Q   1500mAh 44.5 12C
SAMSUNG INR18650-15M   1500mAh 44.5 18C
SAMSUNG INR18650-13Q  1300mAh 44.5 15C
SAMSUNG INR18650-20Q   2000mAh 44.5 8C
SAMSUNG INR18650-20R   2000mAh 44.5 11C
 SAMSUNG ICR18650-22FM  22OOmAh 45 2C
SAMSUNG ICR18650-22P  3.7V 2200mAh 45 5C
SAMSUNG ICR18650-26F/26FM/26H 2600mAh 45 2C
 SAMSUNG ICR18650-28A   2800mAh 45 2C
 SAMSUNG ICR18650-29E  2900mAh 45 2C
     SAMSUNG ICR18650-30A/30B 3000mAh 45 2C
     SAMSUNG ICR18650-32A   3200mAh 48 2C
Panasonic NCR18650PF 2900mAh 45 2C
Panasonic NCR18650BD 3200mAh 47 3C
Panasonic NCR18650B 34OOmAh 45.9 1C
Panasonic NCR18650A 3100mAh 45 2C
LG 18650 HE2 2500mAh 48 12.5C
LG 18650 D1 3000mAh 48.5 2C
LG 18650 C2 2800mAh 48 2C
LG 18650 B4 2600mAh 48 2C
LG 18650 S3 2200mAh 48 2C
LG 18650 MF1 22OOmAh 48 5C

Bi-Concave Lens

The double-concave lens is similar to the plano-concave lens. The focal length is negative, but the parallel incident light diverges outward. The two side surfaces of the double-concave lens have the same radius of curvature, and are generally used for beam expansion and projection.
The image formed by the biconcave lens is always smaller than the upright virtual image of the object. The biconcave lens is mainly used to correct myopia. Myopia is mainly due to the deformation of the lens, which causes the light to gather in front of the retina prematurely. The double-concave lens plays a role of diverging light. The double-concave lens becomes an upright, reduced virtual image, which makes the image distance longer and just falls on the retina.

Double Concave Lenses,N-Bk7 Bi-Concave Lens,Quartz Biconcave Lens,Optical Bi-Concave Lens

Bohr Optics Co.,Ltd , https://www.bohr-optics.com