3ET Battery

Power banks with 3ET batteries for portable charging.

Battery 22.2V 3300mAh 40C EC5 Plug(Suitable for 1400mm F3A, 1700mm P-51D, 70mm Avanti V3, 70mm Viper V2, 70mm YAK-130 V2, 70mm F-16C)

Battery 22.2V 3300mAh 40C EC5 Plug(Suitable for 1400mm F3A, 1700mm P-51D, 70mm Avanti V3, 70mm Viper V2, 70mm YAK-130 V2, 70mm F-16C)

5.017 sold
-25%$59.99$79.99
ENERGYCORD CR2032 3V Button Cell Batteries 40 Pack - Long-Lasting Lithium Coin Battery, High Density Power, Air- and Liquid-Tight Seal, Anti-Corrosion Design, Compatible with Watches Calculators Medical Devices
Free shipping

ENERGYCORD CR2032 3V Button Cell Batteries 40 Pack - Long-Lasting Lithium Coin Battery, High Density Power, Air- and Liquid-Tight Seal, Anti-Corrosion Design, Compatible with Watches Calculators Medical Devices

5.06 sold
-13%$11.30$12.99
High Performance 6-Cells Lithium Polymer RC Toy Battery - 22.2V 3300mAh 40C-EC5 Plug, High Current Accessory for 1400mm F3A, 1700mm P-51D RC Aircraft

High Performance 6-Cells Lithium Polymer RC Toy Battery - 22.2V 3300mAh 40C-EC5 Plug, High Current Accessory for 1400mm F3A, 1700mm P-51D RC Aircraft

5.026 sold
$80.98
FMS Hobby RC Aircraft LiPo Battery - 22.2V 3300mAh 40C EC5 Plug Electric Toy Accessory - Compatible with F3A/P-51D & Selected RC Jets

FMS Hobby RC Aircraft LiPo Battery - 22.2V 3300mAh 40C EC5 Plug Electric Toy Accessory - Compatible with F3A/P-51D & Selected RC Jets

4.7102 sold
$82.98
6000mAh Plastic Wireless VR Elite Headstrap Battery with USB - Enhanced Support Extender, Wearable Portable Power Accessory for Meta Quest 3S/3/2 Headsets, VR Accessories
Free shipping

6000mAh Plastic Wireless VR Elite Headstrap Battery with USB - Enhanced Support Extender, Wearable Portable Power Accessory for Meta Quest 3S/3/2 Headsets, VR Accessories

4.2250 sold
$33.30
5000mAh Portable Extended Battery Pack for Meta Quest 2-3-3S VR Head Strap, 18W 9V/2A Fast Charging VR Device, LCD Screen Lightweight Rechargeable Plastic Accessory, Electronic Gadgets for Extended Playtime
Free shipping

5000mAh Portable Extended Battery Pack for Meta Quest 2-3-3S VR Head Strap, 18W 9V/2A Fast Charging VR Device, LCD Screen Lightweight Rechargeable Plastic Accessory, Electronic Gadgets for Extended Playtime

4.058 sold
-54%$18.50$39.99
ENERGYCORD 20pcs CR2032 Lithium Button Batteries - 3V Voltage, High Density, Airtight, Leak-Proof, Energy Efficient, Dual Crimps, Long-Lasting for Watches, Calculators (Electronics Accessories Battery Replacement)
Free shipping

ENERGYCORD 20pcs CR2032 Lithium Button Batteries - 3V Voltage, High Density, Airtight, Leak-Proof, Energy Efficient, Dual Crimps, Long-Lasting for Watches, Calculators (Electronics Accessories Battery Replacement)

4.6231 sold
$11.69
ENERGYCORD CR Series CR2032 3V Voltage Lithium Button Cell Batteries (80-Pack) with Power Preserve Technology, High-Capacity, Energy-Efficient, Leak-Proof, Long-Lasting Performance for Watches, Calculators
Free shipping

ENERGYCORD CR Series CR2032 3V Voltage Lithium Button Cell Batteries (80-Pack) with Power Preserve Technology, High-Capacity, Energy-Efficient, Leak-Proof, Long-Lasting Performance for Watches, Calculators

5.03 sold
$23.39
ENERGYCORD CR2032 Battery 60-Pack 3V Lithium Button Cell Long Lasting Leak-Free High Capacity for Watches Calculators Medical Devices
Free shipping

ENERGYCORD CR2032 Battery 60-Pack 3V Lithium Button Cell Long Lasting Leak-Free High Capacity for Watches Calculators Medical Devices

5.023 sold
-13%$13.04$14.99
ENERGYPORT 20pcs CR1616 3V Long-Lasting Coin-Shape Button Lithium Batteries - Standard Size, Portable Pack for Keys, Handheld Consoles, Cold and Warm Temperature-Resistant Heat-Resistant Devices
Free shipping

ENERGYPORT 20pcs CR1616 3V Long-Lasting Coin-Shape Button Lithium Batteries - Standard Size, Portable Pack for Keys, Handheld Consoles, Cold and Warm Temperature-Resistant Heat-Resistant Devices

4.321 sold
-5%$6.64$6.99
Rechargeable Battery Pack Head Strap for Meta Quest 3S/3 & Oculus 2 VR Headsets - 18W Fast Charging Battery Charger, 5000mAh, 1 USB Port, Plastic, Compact, Lightweight Portable Wearable Devices VR Accessories Electronic Gadget
Free shipping

Rechargeable Battery Pack Head Strap for Meta Quest 3S/3 & Oculus 2 VR Headsets - 18W Fast Charging Battery Charger, 5000mAh, 1 USB Port, Plastic, Compact, Lightweight Portable Wearable Devices VR Accessories Electronic Gadget

3.456 sold
-38%$18.50$29.99
FMS Hobby Rechargeable Lithium Battery - 3.7V 400mAh Cells, 51005 Plug Hobby Gear, for 500mm PA-18 & 410mm T-28 Electric Remote Control Toy Parts, For 410Mm T-28 Parts

FMS Hobby Rechargeable Lithium Battery - 3.7V 400mAh Cells, 51005 Plug Hobby Gear, for 500mm PA-18 & 410mm T-28 Electric Remote Control Toy Parts, For 410Mm T-28 Parts

3.817 sold
$5.99
10000mAh Wearable Hot-Swappable Battery Strap for Meta Quest Series (3S/3/Oculus Quest 2) VR Headset, Universal Durable Accessory with USB Cable, Multi-Point Adjustable Design, Cotton Pads, Enhanced Support Pad, 3-5H Extended Play for Kids Adults
Free shipping

10000mAh Wearable Hot-Swappable Battery Strap for Meta Quest Series (3S/3/Oculus Quest 2) VR Headset, Universal Durable Accessory with USB Cable, Multi-Point Adjustable Design, Cotton Pads, Enhanced Support Pad, 3-5H Extended Play for Kids Adults

1 sold
-10%$45.89$50.99
SEEVOLX 6-Inch Cordless Portable Chainsaw, 21V Battery-Powered Handheld Pruning Saw with Auto Oiling System, 1500mAh High Output Replacement Battery (2 Total), 1-Hand Lightweight Tool for Tree Trimming, Branch Cutting, High Output Battery
Free shipping

SEEVOLX 6-Inch Cordless Portable Chainsaw, 21V Battery-Powered Handheld Pruning Saw with Auto Oiling System, 1500mAh High Output Replacement Battery (2 Total), 1-Hand Lightweight Tool for Tree Trimming, Branch Cutting, High Output Battery

771 sold
Limited time deal
$34.99
ESYWEN 10000mAh Cells Battery Head Strap for Meta Quest 3/2/3S, 4-Way Adjustment & 180° Tilt Adjust for Enhanced Stability, Extendable Strap for Comfortable Fit, Easy to Wear Techvibes VR Accessory
Free shipping

ESYWEN 10000mAh Cells Battery Head Strap for Meta Quest 3/2/3S, 4-Way Adjustment & 180° Tilt Adjust for Enhanced Stability, Extendable Strap for Comfortable Fit, Easy to Wear Techvibes VR Accessory

4.41.7K sold
Limited time deal
-50%$35.99$71.98
ENERGYPORT CR1616 3V Lithium Coin Cell Battery, Long-Lasting Button Battery, Cold Resistant for Car Keys, Watches, Handheld Game Consoles, Compatible with DL1616, ECR1616 & 1616. Calculators Device
Free shipping

ENERGYPORT CR1616 3V Lithium Coin Cell Battery, Long-Lasting Button Battery, Cold Resistant for Car Keys, Watches, Handheld Game Consoles, Compatible with DL1616, ECR1616 & 1616. Calculators Device

3.485 sold
-13%$6.08$6.99
STARS Head Strap Battery Compatible with Meta Quest 3S/Quest 3-10000mAh Elite Strap with Battery Pack Extend Playtime - Enhanced Support for Quest 3S - Replacement Battery Head Strap Accessories Wearable Vr Smartphone Wireless
Free shipping

STARS Head Strap Battery Compatible with Meta Quest 3S/Quest 3-10000mAh Elite Strap with Battery Pack Extend Playtime - Enhanced Support for Quest 3S - Replacement Battery Head Strap Accessories Wearable Vr Smartphone Wireless

4.846 sold
$44.19
Renata 357-LR44-SR44-A76-AG13 Silver Oxide Watch Battery – 3V Coin Cell

Renata 357-LR44-SR44-A76-AG13 Silver Oxide Watch Battery – 3V Coin Cell

5.01 sold
$8.00
ESYWEN 2x10000mAh Battery Head Strap for Meta Quest 3S/3/2, Wearable Devices VR Headset Accessory, Hot-Swappable, 6-8H Extra Playtime, Adjustable Knobs, Cotton BackPad, Reduces Head Pressure, Enhanced Comfort & Support, Back to School
Free shipping

ESYWEN 2x10000mAh Battery Head Strap for Meta Quest 3S/3/2, Wearable Devices VR Headset Accessory, Hot-Swappable, 6-8H Extra Playtime, Adjustable Knobs, Cotton BackPad, Reduces Head Pressure, Enhanced Comfort & Support, Back to School

3 sold
$69.99
MQ2004 VR Wearable Battery Head-Strap, Elite Strap Replacement for Meta Quest 2/Quest 3, 7500mAh, 2 360° Knob Adjustable, Cable from Power Bank, Slip Prevention, 3-5H Extended Use, Soft Skin-Friendly PU, Enhanced Support & Comfort for Users
Free shipping

MQ2004 VR Wearable Battery Head-Strap, Elite Strap Replacement for Meta Quest 2/Quest 3, 7500mAh, 2 360° Knob Adjustable, Cable from Power Bank, Slip Prevention, 3-5H Extended Use, Soft Skin-Friendly PU, Enhanced Support & Comfort for Users

4.045 sold
$35.99
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Power Supplies

Introduction

Power banks with 3ET batteries deliver reliable portable charging for everyday devices.

  • Choose a power bank capacity that matches your device's battery size and usage needs.
  • Look for models with multiple ports to charge several gadgets at once.
  • Consider compact designs that fit easily in bags or pockets.

Find power banks equipped with 3ET batteries for dependable charging.

FAQs

3ET refers to a specific battery chemistry known for high capacity and stable discharge rates.

Runtime depends on capacity and device draw, often providing multiple full charges per cycle.

Most 3ET power banks support standard USB cables, but check port compatibility for best results.

LED indicators show remaining charge; recharge when levels drop below 20 percent.

Check airline rules, but most 3ET power banks under 100Wh are allowed in carry-on luggage.