- Application: Power Tool
- High-concerned chemical: None
- Battery Number: 10-100pcs
- Size: 18X 65m-21mm x 70mm
- Replacement Battery: Yes
- Set Type: Batteries Only
- Type: Li-Ion
- Nominal Capacity: 3800-5000mAh
- Model Number: 18650 21700
- Brand Name: DIANKAISHOU
- Origin: Mainland China
18650
Model: 3.7 3800mAh
Capacity: 3800mAh
Internal resistance: <15mΩ
Maximum charging current: 4A
Maximum discharge current: 12A
Charging times: 1000 times
Battery voltage: standard voltage 3.7V
the voltage after charging is 4.2V
and the voltage when discharging is 2.5V
Battery weight: About 48g±1g
Battery size: 18*65mm±0.1mm
Product features:
Comes with explosion-proof valve;
Quality Assurance;
long lasting;
High security;
Widely used: Flashlight, Fan, Bluetooth speaker, POS machine, driving recorder, massager, beauty instrument and so on.
Note:
1. Don’t wait until the battery runs out before charging, lithium batteries are not the same as ordinary batteries. Charging the batteries before using them is not conducive to the health of the lithium battery, Depleting the battery may cause it to fail to recharge.
2. Don’t put the lithium battery in a place with high temperature. The lithium battery prefers a place with a low temperature.
3. Summary of charging methods: short charging and short charging (infrequently charging, but if you want to rush!).
4. It is the time to charge when the power drops to 10% ~ 20%.
5. Use high-quality dedicated lithium battery charger with protection function.
6. In low-temperature weather, the use time of the lithium battery will be significantly shortened. This is normal, and it will be restored in about 1 hour in a warm place.
7. The capacity will vary depending of the discharge current.
21700
100% Brand new Original High-quality cells!
Battery Model: 21700
Battery Type: Lithium-ion
Nominal Capacity: 5000mAh
Nominal Voltage: 3.7v
Combination: Can be 3s 4s 7s 10s 13s 16s 20s, etc
Cycle life: 1000 times (80%DOD)
Charging Metod: CC/CV
Charge cut-off voltage: 4.20v /cell
Charging Current: 5000mA
Continuous Discharging Current: 25000mAh (5C)
Discharge cut-off Voltage: 2.7v/cell
Maximum peak discharge: 35000mAh (7C)
Charging Temperature: 0~45°C
Discharging temperature: -20~60°C
Storage temperature: -20~45°C
Version: Flat Top
Weight: 69±1g
Dimension: 21*70mm
8 reviews for 10-100pcs 3.7V 18650 3800mAh 21700 5000mAh Rechargeable Battery DIY Power Li-ion High Discharge Batteries for Electrical Tools
Only logged in customers who have purchased this product may leave a review.
| Color | 3800mAh-18650-100PCS, 3800mAh-18650-10PCS, 3800mAh-18650-20PCS, 3800mAh-18650-50PCS, 5000mAh-21700-100pcs, 5000mAh-21700-10PCS, 5000mAh-21700-20pcs, 5000mAh-21700-50pcs |
|---|---|
| Application | Power Tool |
| High-concerned chemical | None |
| Battery Number | 10-100pcs |
| Size | 18X 65m-21mm x 70mm |
| Replacement Battery | Yes |
| Set Type | Batteries Only |
| Type | Li-Ion |
| Nominal Capacity | 3800-5000mAh |
| Model Number | 18650 21700 |
| Brand Name | DIANKAISHOU |
| Origin | Mainland China |
AliExpress Shopper (verified owner) –
Adequate capacity. The quality is very good. Recommend
AliExpress Shopper (verified owner) –
Received the battery, it’s fine afterwards. Adequate capacity. Highly recommended
AliExpress Shopper (verified owner) –
Consistent with what the seller said. Worth buying and recommending
AliExpress Shopper (verified owner) –
Received the goods, the quality is super good. The capacity is above 5300mah. The seller said 5000mah, far exceeding the capacity stated by the seller. Fantastic. I need to purchase a large quantity of goods. Thank you for being such a great seller. Super recommended
AliExpress Shopper (verified owner) –
The battery is good. It has been repurchased multiple times. Thank you, seller
A***n (verified owner) –
The battery arrived as advertised, but after actual testing with a capacity meter, the real capacity was no more than ~3200 mah — far below the claimed figure in the listing. In daily use it drains noticeably faster and feels weaker than a genuine battery of the same spec. Based on this performance, i cannot recommend it if you’re expecting the full advertised capacity. This seems like an over-rated or possibly misrepresented product.
ヒ***シ (verified owner) –
Yellow 21700 battery 🔋 I had some expectations because each unit had a capacity of 5300mAh. 😊
The result was 3500 to 3600mAh per unit, which was slightly lower than the nominal value of 3800mAh, but within the acceptable margin of error, so it’s OK. 👍
7A Makita Battery 🔋 It seems like it can be used as 👍 👍
AliExpress Shopper (verified owner) –
I am very satisfied. After putting in the capacitor, it has a capacity of 5330mah. I strongly recommend the 21700 from this store. I will purchase more. Thank you for the seller’s enthusiastic service