The 5 Best 3.7 volt 4000 mah Lithium ion Polymer Batteries (2023 reviews)

3.7 volt 4000 mah lithium ion polymer batteries
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It is important to have the well suited 3.7 volt 4000 mah lithium ion polymer battery. In the following post, we will help you to select the best 3.7 volt 4000 mah lithium ion polymer batterys.

Our review process:

Our Top Picks:

Best overall:
Buy: EBL 3.7 volt 4000 mah Lithium ion Polymer Battery
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Best Runner up:
Buy: Adafruit 3.7 volt 4000 mah Lithium ion Polymer Battery
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Best For Replacement Polaroid tablet Battery:
Buy: AKZYTUE 3.7 volt 4000 mah Lithium ion Polymer Battery
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Best With Particle Boron:
Buy: Ydl 3.7 volt 4000 mah Lithium ion Polymer Battery
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Best Premium:
Buy: Vidar 3.7 volt 4000 mah Lithium ion Polymer Battery
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Best overall: EBL 3.7 volt 4000 mah Lithium ion Polymer Battery

EBL 3.7 volt 4000 mah Lithium ion Polymer Battery
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The look and feel of this batteries are consistent with the high quality we're used to from the rest of Ebl's lineup. The advantage of lithium ion batteries is low self-discharge and no typical memory effect, so don’t need to worry about reduction of the battery life after constantly charging and discharging. The standard 18650 battery is 18mm around by 65mm long. It is designed for protected cells, and in a flashlight that has an accommodating spring. The built-in micro usb port is so convenient, and with 2 batteries you can continue to use the device while 2nd battery charges.

EBL does make rechargeable Li-Ion batteries with the micro usb port, for AA and AAA. It can be directly recharged by plug in a USB port like laptops, power bank, wall adapter, etc. It is perfect for the devices that need high battery performance.

Why We Like This:
  • Excellent rechargeable for high intensity flashlight
  • Built-in usb port eliminates the need for an extra charger
  • More efficient holds recharge and stays cooler when in use

Best Runner up: Adafruit 3.7 volt 4000 mah Lithium ion Polymer Battery

Adafruit 3.7 volt 4000 mah Lithium ion Polymer Battery
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If you often find yourself scrambling for good battery, adafruit 3.7 volt 4000 mah lithium ion polymer battery should be your first option for buying. It's a battery for a solar light. It provides over-voltage, under-voltage and over-current protection. It is used to replace worn out battery in a simple human mirror. The cells are connected in parallel and spot-welded to a protection circuit that provides over-voltage, under-voltage and over-current protection. It can be used as a replacement battery for a bluetooth speaker. There are two batteries inside plus you can get the amperage rating.

Why We Like This:
  • New and hot release
  • Good brand reputation

Best For Replacement Polaroid tablet Battery: AKZYTUE 3.7 volt 4000 mah Lithium ion Polymer Battery

AKZYTUE 3.7 volt 4000 mah Lithium ion Polymer Battery
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Next on the list, we've got yet another battery that manages to win our hearts. It's the akzytue 3.7 volt 4000 mah lithium ion polymer battery and it's widely considered as battery that has the most suitable features. The 3.7V 4500mAh 955178 Lithium Battery is NON-POWER BATTERY. It is really the latest state of the art technology in rechargeable. It can be charged and discharged more than 500 times and still retain 80% of the original capacity. It works excellent for a replacement polaroid tablet battery. It is used for power devices that require high current such as uav, mini rc helicopter, model aircraft, electric toys, power tools and other.

The battery size has 1mm-3mm tolerance, In order not to damage the battery or shorten battery life, high voltage charging and incorrect connecting of the positive and negative pole is prohibited. It is extremely thin, light weight and super thin compared to any rechargeable chemistry. The batteries connector type are all JST PH2.0MM.

Why We Like This:
  • Low weight, small size but huge capacity
  • Excellent safety performance, excellent discharge performance
  • Good brand reputation

Best With Particle Boron: Ydl 3.7 volt 4000 mah Lithium ion Polymer Battery

Ydl 3.7 volt 4000 mah Lithium ion Polymer Battery
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The ydl 3.7 volt 4000 mah lithium ion polymer battery should be able to handle its purpose and duties with ease. The other advantage of the Lithium Polymer technology is the very low self discharge. It works with particle boron after reversing pins. It is really the latest state of the art technology in rechargeable. It is extremely thin, light weight and super thin compared to any rechargeable chemistry.

Why We Like This:
  • Low weight, small size but huge capacity
  • Good investment for long term

Best Premium: Vidar 3.7 volt 4000 mah Lithium ion Polymer Battery

Vidar 3.7 volt 4000 mah Lithium ion Polymer Battery
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Vidar line of battery come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The 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. It allows you to enjoy longer use time, experience longer working time, and make your money more valuable.

This is a battery pack containing 2 18650 cells. It can maintain more than 70% capacity. The ion battery strictly controls the consistency of voltage, internal resistance(20m) and capacity to ensure the super stability and durability of the product, longer discharge time and more cycles. It is compatible with a variety of products, such as electronic products, bluetooth speaker, solar light, camera, lighting equipment, audio equipment and other electronic products.

Why We Like This:
  • Came with multiple adapter plugs to fit many applications
  • Longer endurance, more than 50% longer than nimh batteries
  • Overcharge / discharge protection, overheating protection
  • 3.7 v 4400mah rechargeable high capacity li-ion battery pack