Wholesale 21700 Lithium Battery 3.7V 5000mAh Cell for Solar Energy Storage Electric Tools

• Customization: Available
• Type: Li-ion Battery
• Cathode Material: NCM
• Model NO.: CNS-3.7V5000mAh
• Size: Small
• OEM: Yes
• Certificate: ISO9001, CE, RoHS, Un38.3
• Charging Voltage: 3.7V
• Operation Temperature Range: -20~60ºC
• Cycle Life: 800times
• Weight: 46g
• Transport Package: Export Carton
• Specification: 21*70mm
• Trademark: CNS
• Origin: China
• HS Code: 85071000
• Production Capacity: 20000 Pieces/Week

Product Description

Product Description

Wholesale 21700 Lithium Battery 3.7V 5000mAh Cell for Solar Energy Storage Electric Tools

Product Parameters

Product attributes
Operating Voltage	3.7V
Capacity	5000mAh
Certified Product	ISO9001,CE,RoHS,UN38.3
Operation Temperature Range	-20~60ºC
Size	21*70mm
Outer packaging size	230*200*70mm
Cycle Life	800times
Weight	46g
Charging Voltage	4.2V
Discharge voltage	2.75V
Recharging Current	1A
Discharge current	1-3A

Detailed Photos

Application

Company Profile

We are direct factory since 2011, and supply all kinds of batterys according to customers' demand, car batteries, home storage batteries, heavy suty Veihcle Batteries, Road Cleaning truch batteries, low temperature, high temperature special batteries, etc.

And we have the world first class productionline and test equipments, to make sure the cost-effctive price with stable quality and supply ability.

Certifications

Why choose us

1. Full Capacity.
2. Long Working Life.
3. Very low water loss rate.
4. Extremely low self-discharge rate.
5. High CCA and good starting performance.
6. Suitable Capacity&strong adhesion of active material, smooth electrical flow, enhance cold cranking power.
7. Competitive prices with reliable quality;
8. Provide greater resistance to corrosion, vibration&heat damage;
9. Stable performance in different temperature working environments;
10. Mature technology and professional service;
11. Strict quality inspection for each procedure&Responsible staff, Ensuring our product's quality is much more stable.

FAQ

Q1: What is your terms of payment?
A: 30% deposit in advance, 70% balance against goods ready.We'll show you the photos of the products and packages before you pay the balance.

Q2: Can you print my logo on the battery cover?
A: Yes, OEM is available,we can print your logo on the battery case, and you can offer your logo.

Q3: How to maintain the battery?
A:The battery should be stored in clean, dry, ventilated, dark environment when not using, keep it after full charge, recharge it every 3 months or 6 months.

Q4: If a battery fails, what will be the indications?
A: 1.Lower performance
2.Low voltage
3.Cannot charge/recharge
4.Swelled container
5.Acid corrosion

Q5: How can you tell if a battery is good or bad?
A: You should first check the battery for defects such as a broken circuit, a short, or a broken container. If an outward problem is not apparent, then you will have to check the battery's capacity using known measuring techniques to ascertain the problem.

Q6: Do you test all your goods before delivery?
A: Yes, we have a 100% test before delivery.