The Best 3.7v lithium battery of 2021 – Top 10 and Rankings

If you’re looking for 3.7v lithium battery but don’t know which one is the best, we recommend the first out of 10 3.7v lithium battery in this article. Check out how we decide after hours of researching and comparing dozens of items on the market.

Rank No. #1
AKZYTUE 3.7V 2000mAh 103750 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector
  • Voltage: DC 3.7V; Capacity: 2000mAh
  • Package Content: 1 x Lithium Polymer Battery
  • Material: Lithium Polymer; Net Weight: 39g
  • Connector Type: 2P 2mm Pitch; Cable Length: 5cm / 2"
  • Size: 50 x 37 x 10mm / 1.97" x 1.46" x 0.39" (L*W*T)
Rank No. #2
MakerFocus 4pcs 3.7V Lithium Rechargable Battery JST1.25 Connector 2pin, 852540 3.7V 1000mAh Battery with Protection Board and Insulated Rubber Tape Compatible with ESP32 Development Board WiFi Kit
  • [Note1]: After some customers reflected the reversed connectors, we have modified the connectors now, so all the new batteries are correct correct polarity now, you don't need to switch the polarity of the two wires. Thanks a ton for every customer's suggestion and support.
  • [Note2]: The maximum operating current of this battery is only about 1A, cannot be used for unmanned aerial vehicles, model aircraft or power tools and other products that require high current.
  • [Usage]: This product interface is JST1.25 pitch male, it can be matched with some ESP32 Development Board that it come with Female JST 1.25 mm connectors.
  • [Standard Charging Method]: Charging this battery to 4.25V at 0.2C constant current, then charge the battery at a constant voltage of 4.2V till it's charging current≤ 0.05C. Working Current: 1.5A
  • [Charge current time]: Standard Charging: 0.2C (8 hours); Fast charging: 0.5C (2.5 hours).
Rank No. #3
EBL Universal Battery Charger Speedy Smart Lithium Charger for 3.7V Rechargeable Batteries Li-ion LiFePO4 IMR 10440 14500 16340 18650 RCR123A Batteries
  • Universal Charger for: Freely Charging 1 or 2 Pcs Li-ion LiFePO4 IMR INR ICR 18650 18490 18500 18350 17670 16340 RCR123A 14500 10440 Batteries.
  • Smart LED display, The 2 slot charger will charge the lithium batteries when plug in,and the indicator light display in red, then turn into green after fully charged.
  • The charger uses the MCU control technology, providing the constant current and constant voltage safety model
  • High quality 18650 battery charger with multi protection - more safety for you and your batteries.
  • USB Input with small but durable body, you can charging your batteries with USB adapter, car charger, power bank, anywhere you want to go.
Rank No. #4
thor fire 18650 Flashlight 4PCS 3.7V 5000mAh 18650 Rechargeable Battery with 4 Slot USB Battery Charger,High 4000 Lumen Zoomable Flashlight for Camping Hiking (Black)
  • Battery Type: 3.7 Volt Button Top Rechargeable 18650 Battery(Not Flat Top, Not AA or AAA Battery, Not Fit Mod/E-CI )
  • Flashlight Power Supply: 2 x 18650 Rechargeable Battery at a time(Included), Led Lifespan: 100,000 hours, Size:7.6inchx1.37inch,8.46inch extend the head. Skid-proof design & waterproof design LED bulbs(Not for Diving), producing super bright light Perfect for cycling, climbing and other outdoor activities etc.
  • 5 Modes & Adjustable Focus: 5 useful lighting modes (Sos | Low | Medium | High | Strobe) and an easy-to-operate switch.Wide-to-narrow beam zoom to adjust and control the field of view,makes it ideal for different situation.
  • 4 Slot USB Battery Charger: Can charge simultaneously rechargeable batteries of different specifications (18650, 26650, 26500, 22650, 18490, 17670, 17500, 17355, 16340, 14500, 10440, A, AA, AAA, SC sizes. only charge 2 26650, 26550 batteries at a time as the size of 26650 is a little bigger.) - Note: Only charge for rechargeable batteries.
  • Package:1* Tactical flashlight, 4*3.7V 5000m.A.h Button Top Rechargeable 18650 Lithium Battery, 1*Usb 4 Slot 18650 Battery Charger
Rank No. #5
EEMB 3.7V Li-ion 502030 Battery 250mAh Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector
  • UN38.3 Certified. Voltage: 3.7V; Typical capacity: 250mAh, Min capacity: 230mAh; Weight: approximate 5g; Size: 20.5 x 32 x 5.3mm (WxLxH)
  • Reliable Performance—No leak, excellent cost performance and long cycle life. PCM protection function: overcharge, over-discharge, over-current, short circuit protection, over temperature protection.
  • Storage—Keep the cells in 40%-60% charged state during long period storage. We recommend to charge the battery every 3 months after receipt of the battery and maintain the voltage 3.7-4.0V, and store the battery in a cool and dry place.
  • Application—Suitable for portable DVD players, bluetooth devices wireless devices, wearable electronic devices, PDA and digital cameras, GPS, monitoring units, notebook computers, e-books, telematics, tracking devices, sleep management equipment, blood oxygen tracking equipment, pulse monitors, Wi-Fi enabled smart home systems.
  • Directly from manufacturer with worldwide technical support. Please contact us directly if you have any questions or issues with our products and we will respond as soon as possible.
Rank No. #6
10440 3.7V Rechargeable Battery Li ion 350mAh Button Top- 2Count
  • Pay attention- There are NOT normal AAA battery (size: 0.39Inch*1.77Inch), Our size: 0.39Inch*1.73Inch
  • 10440 Cell 3.7V li ion Rechargeable Battery
  • Button Top; Normal Capacity:350mAh
  • 3.7V Rechargeable
  • Application for:Most Flashlight, wireless communications terminal equipment and a variety of portable devices, etc.
Rank No. #7
EBL 3.7V Li-ion Rechargeable Batteries 3000mAh 18J Lithium Battery for Flashlights, Headlamps, Doorbells, RC Cars (2 Pack)
  • EBL USB rechargeable battery - 3.7V lithium batteries(size: 18.5mm x 70mm),perfectly used for flashlights(S1000/LC 90 Bolder/T04-1 /LFX1000), toys, doorbells, headlamps and other household devices.
  • Built-in micro USB port - easy to charge with the included 2 in 1 USB cable, no additional battery charger required, just plug into any USB port at anytime and anywhere.
  • Recharge up to 1200 cycles - these batteries could be recharged up to 1200 times, longer battery life than alkaline batteries, no need to buy batteries frequently.
  • Safety Assurance - built-in integrated safety circuit protects battery from over-charge, over-discharge, short-circuit and over-heat, ensures complete safety for the battery charging.
  • High performance - EBL 3.7V Li-ion batteries with 3000mAh capacity, support stable 3.7volt output voltage, makes the devices work more stable and lasting longer, great replacement batteries for high frequently used devices.
Rank No. #8
BATTRY SOLAR LIPO 18500
  • Model: 3.7v ICR10440 Battery(They are not 18650 batteries,so pls pay attention before your placed an order)
  • Diameter:0.41 inch*Height:1.75inch ,they can't replaced the 18*65mm battery
  • Do not use these batteries in electrical devices that require 1.5V batteries.
  • More than 2000 times Long cycle life,bring you high quality experience.
  • Battery appliations: Solar light , Flashlight,headlamp,lantern,LED light,weapon light.
Rank No. #9
thor fire 18650 Flashlight 4PCS 3.7V 5000m.A.h Lithium 18650 Rechargeable Battery with 4 Slot USB Battery Charger,High 4000 Lumen Zoomable Flashlight for Camping Hiking (Green)
  • Battery Type: 3.7 Volt Button Top Rechargeable 18650 Battery(Not Flat Top, Not AA or AAA Battery, Not Fit Mod/E-CI )
  • Flashlight Power Supply: 2 x 18650 Rechargeable Battery at a time(Included), Led Lifespan: 100,000 hours, Size:7.6inchx1.37inch,8.46inch extend the head. Skid-proof design & waterproof design LED bulbs(Not for Diving), producing super bright light Perfect for cycling, climbing and other outdoor activities etc.
  • 5 Modes & Adjustable Focus: 5 useful lighting modes (Sos | Low | Medium | High | Strobe) and an easy-to-operate switch.Wide-to-narrow beam zoom to adjust and control the field of view,makes it ideal for different situation.
  • 4 Slot USB Battery Charger: Can charge simultaneously rechargeable batteries of different specifications (18650, 26650, 26500, 22650, 18490, 17670, 17500, 17355, 16340, 14500, 10440, A, AA, AAA, SC sizes. only charge 2 26650, 26550 batteries at a time as the size of 26650 is a little bigger.) - Note: Only charge for rechargeable batteries.
  • Package:1* Tactical flashlight, 4*3.7V 5000m.A.h Button Top Rechargeable 18650 Lithium Battery, 1*Usb 4 Slot 18650 Battery Charger
Rank No. #10
8 Pack 3.7V 800mAh [CAN BE RECHARGED] CR123A Lithium Batteries and LED Digital Display Charger for Arlo Security Wireless Cameras VMC3030 VMK3200 VMS3330 3430 3530, Flashlight, Microphone
  • 21.8% PERFORMANCE UPGRADE : Talent Rechargeable CR123A Lithium-ion Batteries are specifically designed for Arlo Security Cameras( VMC3030 VMK3200 VMS3330 3430 3530). Optimization techniques for energy utilization are applied to boost the performance, lasting 21.8% longer than other RCR123A batteries. Strengthened loops prevent the battery from quick self-discharging.
  • 800mAh HIGH CAPACITY & GREAT SAVINGS : CR123A Rechargeable Batteries high capacity 800mAh,3.7v. The reusable CR123A batteries can be fully charged up to 650 times.And can replace disposable battery 123, 123A, BR2/3A, CR123, CR123A, CR123R, CR17335, CR17345, DL123A, EL123AP, K123LA, L123A, SF123A, VL123A, 5018LC.
  • FAST CHARGER & SAFE : CR123A charger charge time about 2-Hour @ 2A Charge Current,with built-in LED Digital Display Screen,can easily shows the percentage of battery life in digital format,no more guessing whether it charge or not!(The light will go out after about 23 seconds of charging).Built with mischarging safety technology, it will smartly detect and cut off power Manufactured from durable and resistant materials,helps extend the life of the charger.
  • LONG-STANDING POWER : Long-standing sustainable battery could be accompanied with your Arlo camera all the time. No weather worries, superior performance in extreme temperatures from -4 degree to 45 degree. This battery provides long lasting power to make sure that your everyday security without unexpected interruption.Over Charge Protection, Over Current Protection, Over Voltage Protection, Short Circuit Protection,UL FCC CE ROHS certified, protects the charger and the batteries
  • 100% BRAND SERVICE: 30-Day Worry Free and 12 Months Replacement, If you are not satisfied with this Arlo Rechargeable Battery Set, let us know and you will be offered a satisfied service. Enjoy this absolutely RISK FREE purchase.

How Do You Buy The Best 3.7v lithium battery of 2021?

Do you get stressed out thinking about shopping for a great 3.7v lithium battery? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching 3.7v lithium battery, which is why we have assembled a comprehensive list of the greatest 3.7v lithium battery available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 3.7v lithium battery that you consider buying. Your questions might include the following:

  • Is it worth buying an 3.7v lithium battery?
  • What benefits are there with buying an 3.7v lithium battery?
  • What factors deserve consideration when shopping for an effective 3.7v lithium battery?
  • Why is it crucial to invest in any 3.7v lithium battery, much less the best one?
  • Which 3.7v lithium battery are good in the current market?
  • Where can you find information like this about 3.7v lithium battery?

We’re convinced that you likely have far more questions than just these regarding 3.7v lithium battery, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 3.7v lithium battery, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 3.7v lithium battery. Make sure that you are only using trustworthy and credible websites and sources.

We provide an 3.7v lithium battery buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 3.7v lithium battery currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 3.7v lithium battery has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features:What bells and whistles matter for an 3.7v lithium battery?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 3.7v lithium battery.
  5. Customer Ratings: Number ratings grade 3.7v lithium battery objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 3.7v lithium battery.
  7. Product Quality: You don’t always get what you pay for with an 3.7v lithium battery, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 3.7v lithium battery is should be an indication of how long it will work out for you.

We always remember that maintaining 3.7v lithium battery information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

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