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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Description

🔦 Light up your lifestyle with the ultimate keychain powerhouse!

RUGGED READY - IPX6 water resistance and pocket clip keep you prepared rain or shine, on the go.
DUAL POWER FREEDOM - Seamlessly switch between USB-C rechargeable battery or AAA for uninterrupted use.
TRIPLE SIDELIGHT VERSATILITY - UV for authenticity checks, red for signaling, warm white for cozy reading vibes.
FIVE MODES INSTANT EMERGENCY - From moonlight to strobe, plus momentary on for those critical, split-second needs.
BLAZING BRIGHTNESS COMPACT POWER - 700 lumens lighting up your every adventure with a 220ft beam reach.

The RovyVon Angel Eyes E8 is a sleek, ultra-bright 700-lumen keychain flashlight featuring three versatile sidelights (UV, red, warm white), dual power options (USB-C rechargeable Li-Po battery plus AAA compatibility), and five adaptable brightness modes including instant momentary on. Compact, water-resistant, and designed for everyday carry, it’s perfect for professionals who demand reliable illumination and multifunctional utility on the move.

Specifications

Special Feature	Adjustable Light Modes, Dual Source, IPX6 Waterproof, USB C Charge
Color	E8 (Sidelight: UV+Red+White)
Power Source	Battery Powered
Light Source Type	LED
Material	Polycarbonate
White Brightness	700 Lumens
Included Components	Key Ring 2, Reversible Pocket Clip 1, USB-C Cover 1, User Instruction 1, Warranty Card *1
Product Dimensions	1.08"D x 1.08"W x 2.6"H
Voltage	3.7 Volts
Battery Cell Composition	Lithium Polymer
Item Weight	0.08 Pounds
Number of Batteries	1 Lithium Polymer batteries required. (included)
Water Resistance Level	Water Resistant
Brand	RovyVon
Brightness	700 Lumen
Battery Description	AAA
Style	Modern
Manufacturer	RovyVon
Part Number	E8U-G3
Item Weight	1.28 ounces
Item model number	E8
Batteries	1 Lithium Polymer batteries required. (included)
Item Package Quantity	1
Shape	Rectangular
Number of Lights	5
Specific Uses	Camping, Hiking, Travel, Night Walking, Reading, Home Use
Special Features	Adjustable Light Modes, Dual Source, IPX6 Waterproof, USB C Charge
Batteries Included?	Yes
Batteries Required?	Yes
Bulb Features	Authenticate currency, check pet stains, signal light
Color Temperature	6500 Kelvin

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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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.