21700 Lithium ion Cylindrical Battery For Energy Storage System 3.7V 5000MAH
Feature for 21700 Lithium ion Cylindrical Battery For Energy Storage System 3.7V 5000MAH
The model 21700 is the newest design for Lithium ion Cylindrical Battery, the size follow Samsung, and the performance similar with Tesla , the energy density rise20% than normal lithium-ion battery , and the cost down 9%
other name Ncr21700abattery pack ,use for EV Segment
21700 4100mah // 4500mah// 4800mah // 5000mah
It is samilar model as Panasonic NCR21700A 5000mAh 15A high drain 3.7V 21700 rechargeable lithium-ion.
samilare performance but competitive price .
Specification for 21700 Lithium ion Cylindrical Battery For Energy Storage System 3.7V 4800MAH
| No. | Items | Data | Standard |
| | Nominal Capacity | 4500mAh-5000mAh | 0.5C Standard discharge |
| 2 | Minimum Capacity | 4400mAh |
| 3 | Nominal Voltage | 3.7V | Mean Operation Voltage |
| 4 | Delivery voltage | 3.60~3.8V | Within 10 days from Factory |
| 5 | Charge Voltage | 4.2V±0.03V | By standard charge method |
| 6 | Standard charging method | 0.2C constant current,4.2V constant voltage charge to 4.2V,continue charging till current decline to ≤0.01C | |
| 7 | Charge current | 0.2C | 940mA | Standard charge, charge time about 7h(Ref) |
| 0.5C | 2400mA | Rapid Charge, charge time about: 3.5h(Ref) |
| 8 | Standard discharging method | 0.2C constant current discharge to3.0V, | |
| 9 | Cell Internal Impedance | ≤50mΩ | Internal resistance measured at AC 1KHZ after 50% charge |
Cell Electrical Performance
| No | Items | Test Method and Condition/
| Criteria |
| 1 | Rated Capacity at 0.2C(Min.) | After standard charge, the capacity shall be measured on 0.2C discharge till the voltage discharge to3.0V, | ≥2400mAh | ≥100% |
| Rated Capacity at 0.5C(Min.) | After standard charge, the capacity shall be measured on 0.5C discharge till the voltage discharge to 3.0V, | ≥7200mAh | ≥98% |
| 2 | Cycle Life | Charging and discharging battery as blew conditions 0.2C standard charge to 4.2V end-off 0.2C standard discharge to 3.0V cut-off Continuous charge and discharge for 300 cycles ,the capacity will be measure after the200th cycle | ≥80% of initial capacity |
| 3 | Capacity retention | The battery to be charge in accordance with standard charge condition at 20~25℃,then storage the battery at an ambient temperature 20~25℃ for 28 days. Measure the capacity after 30 days with 0.2C at 20~25℃ as retention capacity | Retention capacity ≥85% |
Application for 21700 Lithium ion Cylindrical Battery For Energy Storage System 3.7V 5000MAH
- The cell can be assebled to battery pack for EV / E-CAR / E-SCOOTER /E-Bike
- The cell can fit together to various capacity and voltage to used forEnergy storage system// Portable ESS
- The cell can assembled to the pack for power tool /
- The cell used for Solar production
- The cell can fit in series or in parallel for various Elictreicl boat
Package For Bulk
20-50 pcs / box and 4 box pcs/ export carton
Display and specially color carton are workable of OEM ODM order
The pack meet international transportation require , and the outer carton is hard and nice.
Delivery Time Information
If the customer order normal industry pack base on blue pvc and printing, Tac can delivery with 7-10 days
if the order is OEM for bulk or battery pack, TAC can delivery the 25-30 days after confirm the detail including of the pcb wire and connector etc.
Period of Warranty
The period of warranty is 12 months from the batteries shipped out from factory. We guarantees replace the good production or return the payment as long as the reject reason because of our quality.
The suggestion for Storage of the Lithium-ion Batteries
The batteries should be stored at room temperature, charged to about 30% to 50% of capacity.
We recommend that batteries be charged about once per half a year to prevent over discharge.
Other Size for Lithium ion cylindrical Battery
| MODEL | CAPACITY | VOLATGE |
| ICR10440 | 250-400mAh | 3.7-4.2V |
| ICR14500 | 450-600mAh | 3.7-4.2V |
| ICR17335 | 750-900mAh | 3.7-4.2V |
| ICR18490 | 1100-1500mAh | 3.7-4.2V |
| ICR18500 | 1500-1800mAh | 3.7-4.2V |
| ICR18650 | 2000-2800mAh | 3.7-4.2V |
| ICR26650 | 3000-3300mAh | 3.7-4.2V |
| ICR20700 | 3500mAh | 3.7-4.2V |
| ICR21700 | 4800mAh | 3.7-4.2V |
and more pls check our website Http://www.tacbattery.com
21700 Lithium ion Cylindrical Battery Bare Cell
In order to meet digital production and household applicances requrie , we have specially TOP type design for 21700
Tac have 3.7v and 3.2V for 21700 size . Pls check more other modle for 3.2V LiFePO4 safer cell
Lithium-ion battery Cell Assembled To Various Battery Pack
