Can a 10440 battery be used in place of a standard aaa? will the higher voltage harm the light?

Yes and it does no harm to the flashlight.

Is it normal that the charged battery is empty after 2 months not used, and including extra AAA after 3 months?

I don’t think that’s normal. Mine keeps charge and u use regular.

can I charge a phone off the usb c port?

Thanks for your question, no, you can't charge a phone off the usb c port.

Will it be an issue using a fast charger to charge this light?

You can use the fast charger to charge to flashlight, because it has the Resistance protection plate inside, but we suggest you use the 5V-0.35mAh charger. Thank you so much for your question.

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E8 Dual Power EDC Flat Flashlight Rechargeable, Fits AAA Battery | 700 Lumen Small Bright Pocket Keychain Flashlight with UV/White/Red Sidelights, for Outdoor, Camping, Banknote Checking

Product ID: 472401612

Details

Colour
E8 (Sidelight:
Light source type
LED
Material
Polycarbonate
Power source
Battery
Special features
Rechargeable

🌈3 sidelights: warm white, red, 365nm UV

💡700 lumens max brightness

🔋Dual power: rechargeable Li-Po + AAA backup

€ 123.86

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔦 Light up your EDC game with power, versatility, and style!

RUGGED READY - IPX6 water resistance and durable polycarbonate build keep you shining rain or shine.
DUAL POWER FREEDOM - Seamlessly switch between USB-C rechargeable Li-Po battery and AAA backup for unstoppable use.
FIVE ADAPTIVE MODES - From moonlight to strobe, customize your beam for every moment, plus instant momentary-on for emergencies.
VERSATILE SIDELIGHTS - Warm white for reading, red for signaling, and 365nm UV for authenticating & pet care—be ready for anything.
ULTRA BRIGHT COMPACT - 700 lumens lighting up your every adventure with a sleek 66mm frame.

The RovyVon E8 is a compact, rechargeable EDC flashlight delivering up to 700 lumens with a 70m beam. Featuring a dual power system—USB-C rechargeable Li-Po battery plus AAA backup—it offers five brightness modes and three versatile sidelights (warm white, red, 365nm UV). Built tough with IPX6 water resistance and a polycarbonate body, it’s designed for professionals and adventurers who demand reliable, multi-functional illumination on the go.

Specifications

ASIN	B0B748G821
Additional Features	Rechargeable
Batteries are Included	Yes
Battery Description	Lithium Polymer (Li-po) and AAA (Alkaline or Lithium)
Battery Type	Lithium Polymer
Best Sellers Rank	#106,159 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,388 in Handheld Flashlights
Brand Name	RovyVon
Color	E8 (Sidelight: UV+Red+White)
Color Temperature	6500 Kelvin
Customer Reviews	4.7 4.7 out of 5 stars (236)
Finish Types	Polished
Included Components	Key Ring 2, Reversible Pocket Clip 1, USB-C Cover 1, User Instruction 1, Warranty Card *1
Item Dimensions D x W x H	27D x 27W x 66H millimeters
Item Type Name	Flashlight
Item Weight	0.08 Pounds
Light Output Maximum	700 Lumens
Light Path Distance	70 Meters
Light Source Special Features	Multiple Light Colors and Modes, Versatile Sidelights
Light Source Type	LED
Manufacturer	RovyVon
Manufacturer Part Number	E8U-G3
Manufacturer Warranty Description	2-year warranty.
Material Type	Polycarbonate
Model Number	E8
Mounting Type	clip-on
Number of Batteries	1 Lithium Polymer batteries required. (included)
Number of Items	1
Number of Light Sources	5
Power Source	Battery Powered
Recommended Uses For Product	Daily use, walking the dog, camping, hiking, hunting, reading, checking pet fluid stains, signaling, meeting various demands, and emergencies
Runtime	45 minutes
Set Name	E8
Shape	Rectangular, Compact
Size	Small
Specification Met	IPX6
Style Name	Modern
Unit Count	1 Count
Water Resistance Level	Water Resistant
White Brightness	700 Lumens

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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