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: 461691234

Details

Color
E8(Sidelight:
Light Source Type
LED
Material
Polycarbonate
Power Source
Battery
Special Feature
Adjustable USB

🌈3 sidelights: white, UV, red

💡700 lumens max brightness

🔋Dual power: USB-C rechargeable + AAA

R$803

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Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔦 Light Up Your Life, Anywhere, Anytime!

RUGGED READY - IPX6 water resistance and a durable polycarbonate body ensure this keychain flashlight keeps up with your active lifestyle.
DUAL POWER FLEXIBILITY - Recharge via USB-C or pop in an AAA battery for extended adventures—never get caught powerless.
ULTRA BRIGHT COMPACT - 700 lumens beam cuts through darkness up to 220ft—your perfect everyday carry light.
FIVE ADAPTIVE MODES INSTANT ON - From moonlight to strobe, customize brightness or hold for momentary emergency lighting in a flash.
VERSATILE SIDELIGHTS FOR EVERY TASK - Switch between warm white for reading, 365nm UV for authenticity checks, and red for discreet signaling.

The RovyVon Angel Eyes E8 is a sleek, ultra-bright keychain flashlight delivering up to 700 lumens with a 70-meter beam. Featuring three sidelights (white, UV, red), five brightness modes, and a dual power system (USB-C rechargeable Li-Po battery plus AAA compatibility), it’s designed for versatile everyday use—from reading and pet stain detection to emergency signaling. Compact, water-resistant (IPX6), and equipped with a pocket clip, it’s the ultimate EDC tool for professionals on the go.

Specifications

ASIN	B0B748G821
Additional Features	Adjustable Light Modes, Dual Source, IPX6 Waterproof, USB C Charge
Batteries are Included	Yes
Battery Description	AAA
Battery Type	Lithium Polymer
Best Sellers Rank	#216,279 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,884 in Handheld Flashlights
Brand Name	RovyVon
Color	E8(Sidelight: UV+Red+White)
Color Temperature	6500 Kelvin
Customer Reviews	4.6 4.6 out of 5 stars (209)
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	1.08"D x 1.08"W x 2.6"H
Item Type Name	Flashlight
Item Weight	1.28 ounces
Light Output Maximum	700 Lumens
Light Path Distance	70 Meters
Light Source Special Features	Authenticate currency, check pet stains, signal light
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 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
Size	Small
Specification Met	IPX6
Style Name	Modern
Unit Count	1.0 Count
Water Resistance Level	Water Resistant
White Brightness	700 Lumens

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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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.

How is product pricing calculated?+

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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R$803

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Brazil.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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