Description
Specification
Features:
1. Capacity: 5000mah
2. Voltage: 3.7v
3. Size: 21*70mm
4. Material: lithium ion
5. Model: 21700 battery
2. Voltage: 3.7v
3. Size: 21*70mm
4. Material: lithium ion
5. Model: 21700 battery
Advantage of 18650 battery:
1.21700 battery is stable performance
2. 21700 battery has full capacity
3. 21700 battery has long cycle life
4. 21700 battery is safe use
5.Overcharge, overdischarge, overcurrent,overvoltage protection circuit
6.Short circuit protection
7.Over temperature protection.
2. 21700 battery has full capacity
3. 21700 battery has long cycle life
4. 21700 battery is safe use
5.Overcharge, overdischarge, overcurrent,overvoltage protection circuit
6.Short circuit protection
7.Over temperature protection.
Applications:
Small electric fans Flashlights
Emergency lights Solar cells, Massagers
Electrical equipment Electronic toys
Model aircraft Power tools
Backup power supplies Medical equipment, etc.
Customize for your products:
1.Whether needs 2 wires/tabs,and the length of wire/tabs
2.Whether needs protection board
3.How’s the size of battery
2.Whether needs protection board
3.How’s the size of battery
NO. | Item | Specifications |
1 | Nominal capacity | 5000mAh 0.5C Discharge |
2 | Min capacity | 4900mAh 0.5C Discharge |
3 | Nominal voltage | 3.7V |
4 | Charge current | Standard Charge ：0.2C |
5 | Standard Charging method | 0.2C CC （ constant current ） charge to 4.2V,then CV(constant voltage 4.2V)charge till charge current decline to ≤0.03C |
6 | Charging time | Standard Charging Approx7.0 hours |
7 | Max.discharge current | Constant current 2C end voltage 2.35V |
8 | Standard Discharge Current | Constant current 0.5 C end voltage2.35V |
9 | Discharge cut-off voltage | 2.35±0.1V |
10 | Charge cut-off Voltage | 4.30±0.05V |
11 | Initial Impedance | ≤150mΩ |
13 | Operating temperature | Charging： 0℃~45℃ Discharging：-10℃~45℃ |
14 | Storage temperature | Approx:-5℃~45℃ |
15 | Storage Humidity | ≤75% RH |
16 | Appearance | Without scratch,distortion,contamination and leakage |
17 | Standard environmental condition | Temperature ： 23±5℃ Humidity : 45-75%RH Atmospheric Pressure ： 86-106 Kpa |
Product Description
Packing & Delivery
FAQ
Q1: Can I have samples to test? And what is lead time for sample order?
Yes, we can supply samples in 5-7 days depending on different product items and clients’ requirement. For normal in stock product, 2~5 days; For customized product, 3~7days depends on requirements.Q2: What is the warranty for the products?
1~10 years,Since our product range is wide,Minimum12v 40Ah, Max 2MW container energy storage system, Different products has different warranty,welcome to check before placing order.Q3: What is your company’s advantage?
We’re direct factory,have very rich exprience in customizing kinds of high voltage,high capacity, high performance battery packs for 12v / 24v / 48v / 80v RV caravans, Electric forklift, Golf cart, Marine, AGV, Lead acid batteries replacement, Solar home energry storage,384V / 460V / 614V Aircraft tractors, heavy truck, Mine train,110v / 220v DC power supply, ESS cabinet,ESS container and so on, can offer you the best & professional technology support.
Yes, we can supply samples in 5-7 days depending on different product items and clients’ requirement. For normal in stock product, 2~5 days; For customized product, 3~7days depends on requirements.Q2: What is the warranty for the products?
1~10 years,Since our product range is wide,Minimum12v 40Ah, Max 2MW container energy storage system, Different products has different warranty,welcome to check before placing order.Q3: What is your company’s advantage?
We’re direct factory,have very rich exprience in customizing kinds of high voltage,high capacity, high performance battery packs for 12v / 24v / 48v / 80v RV caravans, Electric forklift, Golf cart, Marine, AGV, Lead acid batteries replacement, Solar home energry storage,384V / 460V / 614V Aircraft tractors, heavy truck, Mine train,110v / 220v DC power supply, ESS cabinet,ESS container and so on, can offer you the best & professional technology support.
Q4: Do you accept OEM/ODM?
Yes, welcome!
Q5: What is the lead time for the mass order?
Generally speaking, about 7~20 days depending on different items after getting down payment and confirmation about the samples.
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