Are you shopping for the best 18650 4000mah Battery? We have evaluated and analyzed categorically more than 10 150 customer reviews, and we have come up with the 10 best products you will have an interest in, including 18650 4000mah Battery. Plus, the features that make every item stand out from the crowd are highlighted, with a view to save your valuable time.
Best 18650 4000mah Battery
- Nominal capacity: 4000mah 4400mAh 6000mah
- Product size: 19 x 37 x 66mm Voltage: 3.7 V
- Standard weight: about 90g
- recommended charge current: 2A
- The battery pack is widely used in headlights, miner's lamp, flashlight, searchlight, loudspeaker (loudspeaker), wireless monitoring equipment, instrumentation, traffic signs, portable small appliances
- Total Max Output Charging Current 4000mAh /One channel 4.2Volts 2000mAh ⅹ 2
- Speedy Charging equally (one independent or two simultaneous battery charging)
- Safety Protection/ Overcharging Prevention/ Overvoltage Prevention/ Overcurrent Prevention/ Reversed Polarity Prevention
- Compatible with 3.6V 3.7V 4.2V 21700 20700 18650 Circuit protected Li-ion Batteries
- Package Include 1x RC217 Battery Charger/ 1x 12V Adaptor/ 1x Car Adapter Code
- 【Product Information】 2/4/8-Pack, Battery of 3.7V 3200mAh, 67*18*18mm/2.6*0.7*0.7inch (This is Button Top Battery, please ensure the size before purchase!!!).
- 【Long-Lasting Batteries】 Could be recharged up to 800 times. Efficient and long-lasting batteries provide reliable power support for your daily use and emergencies.
- 【Designed for Dependability】 The internal design provides short circuit protection, over temperature protection, overload protection, etc. Store in a cool and dry place, avoid high temperature and sun exposure.
- 【Applicable Device】 3.7V 3200mAh rechargeable battery, high performance, more durable, can be used in many electronic devices, such as LED Flashlight, Headlamps, Doorbells, Portable devices, etc.
- 【After-sales service】 All batteries have undergone strict quality testing before leaving the factory, please use them with confidence. Any questions please feel free to contact us. Fast ship from US warehouse. Response within 7*24 hours.
- Extremely long, safe and ecological work cycle.
- Safe and environmentally friendly, with low self-discharge rate, suitable for long-term daily use.
- Durable and economical, high energy density ensures lasting power and uninterrupted power to your equipment.
- Stable discharge rate, no "memory effect", high-performance lithium-ion battery.
- Low frequency working current protection, short circuit and over current protection.
- 【Size】: (L*W*H) 65*18*18mm, 9900mAh , 3.7V, it is IB65O battery with flat top, not AA battery, and not AAA battery. Safe and environmental protection, no harm to the environment.
- 【Product Information】 2/4/8-Pack, Battery of 3.7V 9900mAh, 67*18*18mm/2.6*0.7*0.7inch (This is Button Top Battery, please ensure the size before purchase!!!).
- 【Long-Lasting Batteries】 Efficient and long-lasting batteries provide reliable power support for your daily use and emergencies. Could be recharged up to 800 times.
- 【Designed for Dependability】 Built-in intelligent integrated chip to prevent battery oversaturation. The internal design provides short circuit protection, over temperature protection, overload protection, etc. Store in a cool and dry place, avoid high temperature and sun exposure.
- 【QUALITY ASSURANCE】The 3.7V 4400mAh rechargeable li-ion battery strictly controls the consistency of voltage, internal resistance(20mΩ) and capacity to ensure the super stability and durability of the product, longer discharge time and more cycles. After 1000 cycles of normal charge and discharge, it can maintain more than 70% capacity.
- 【KNOW BEFORE USE】3.7V li-ion battery is suitable for 3.7V~4.2V equipment. For example, Bluetooth speakers, solar outdoor lights, solar cameras, dental lights, etc. After receiving the battery, check whether the position of the red (+) and black (-) wires of the plug is consistent with the old battery. In different positions, you need to adjust the position. If the plug size is different, you can replace the connector by yourself.
- 【SIZE & DURABILITY】Size: 2.68*1.46*0.75 Inch(68*37*19mm). Please Check the battery size and connector type. 3.7V 4400mAh rechargeable high capacity li-ion battery pack. Compared with NIMH, it can maintain 70% of the capacity for 1000 cycles of charging and extend the cycle life by 50%.
- 【REAL CAPACITY】3.7V 4400mAh rechargeable li-ion battery has undergone rigorous capacity testing (±3%), which absolutely guarantees that the capacity is real and not false, and supports capacity testing. Allows you to enjoy longer use time, experience longer working time, and make your money more valuable.
- 【BUY WITH CONFIDENCE】The product conforms to Amazon's after-sales service policy, after-sales support 6 months warranty service, I believe you have more confidence in our batteries. If you have any questions about the use of the product, please contact us in time, we will reply to you within 24 hours. Thank you very much.
- WHAT YOU GET: 1x Small Led Flashlight, 4 xӠ.V Rechargeable Battery（Battery color random delivery）,1 x 4 slot Rechargeable Battery charger
- 4 BAY 18650 CHARGER: 4 charging channels can charge the battery independently. Battery charer 4 bay can be adjusted according to different battery sizes, 4 bay batteries charger 3.7v rechargeable with indicator Lights.
- SAFETY PROTECTION: Under voltage protection, over voltage protection, over current protection, over temperature protection, short circuit protection, anti-reverse battery protection, Zero Volume Battery Repair and excellent heat dissipation design.
- INTELLIGENT CHARGER: 18650 batteries charger support【Output: 4.2V/500mAh】 【Input: AC100-220V】3.7v battery charger is universal, suitable for using at home or traveling abroad.
- 【Note: Smart batteries charger Only for certain type Battery, Not AA or AAA Battery, Not NiMH Battery】【Li-ion Universal Charger】If there are any questions about the batteries smart charger, please feel free to contact us, we will respond in 24H.
- 【CELL SPECIFICATIONS】 4000mAh 3.7V rechargeable type. Note: Please charge it In order to avoid a dead battery when using it for the first time
- 【WIDE APPLICATION】：This 3.7V 4000mAh rechargeable battery can be used in battery-powered equipment, such as replacing rechargeable battery roller motors, mobile power supplies, solar generators, electric bicycles, power walls, etc.
- 【HIGH PERFORMANCE】DIY Professional Battery Pack with the nominal voltage of each cell = 3.7 V. High continuous discharge rate, short circuit and over-current protective
- 【SAFETY ASSURANCE】：Temperature protection,Intelligent protection IC board,Stable Capability,Durable,A+ battery cell,Over charge protection,Over discharge protection,Short-circuit protection.
- 【BATTERY SIZE】: Φ19mm*L:69mm. The connection length is 2.7 Inches. Please Check the battery size and connector type.
- This lithium polymer battery charger contains current and Vmax detection program to prevent your batteries from overcharging, short circuit protection Reverse connection protectio
- Using a usb port to charge, you can charge the battery on the charging head, on the car charger, or on the power bank, wide range of use, more convenient for daily use
- Stops charging automatically if the temperature of charger or battery gets too high when charging
- Stainless steel rail is more durable and smooth
- Genuine JST 2-pin connector
- 4400mAh Capacity
- Weight: 95 g/ 3.5 oz
- Max recommended charging rate: 1A
- Max recommended discharge rate: 2.2A
Commonly, the budget is one of the primary thoughts you carefully think about when shopping for brand new things before anything else. Many brands supply numerous 18650 4000mah Battery at different prices. for the most part, costly products have additional and special characteristics. But you can always buy the product that suits you financially and fits your needs.
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