Reviewed by Alex Jones, UK Review Expert (Update: July 2020)

#1 Choice: Overall Review Score = 93%

My best recommendation right now in July 2020 is…

Editor's Pick
4pcs 18650 3.7v 2000mah icr18650 Rechargeable Battery with Pointed (Without PCB) for 18650 li-ion...
4pcs 18650 3.7v 2000mah icr18650 Rechargeable Battery with Pointed (Without PCB) for 18650 li-ion...
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    #2: Top Runner-Up

    SaleAlso Good
    LED Torch Rechargeable, 2 Pack Flashlight Torches Super Bright Lantern 1500 Lumen, IPX4 Waterproof,...
    470 Reviews
    LED Torch Rechargeable, 2 Pack Flashlight Torches Super Bright Lantern 1500 Lumen, IPX4 Waterproof,...
      View on Amazon UK

      #3: Best For Positive Review Scores

      Worth Considering
      PROZOR TR001 Light Handheld Super Bright T6 LED USB Rechargeable 18650 Battery Torch with Camping...
      188 Reviews
      PROZOR TR001 Light Handheld Super Bright T6 LED USB Rechargeable 18650 Battery Torch with Camping...
        View on Amazon UK

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        BEST 18650 BATTERY FOR FLASHLIGHT: THE ULTIMATE 2020 BUYING GUIDE

        Full buying guide on selecting the best 18650 battery for flashlight is coming soon. Please come back soon!

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