Is this compatible with samsung sm-j510fn?

No,this battery compatible with Samsung Galaxy Note 4

Should I use this battery when I first get it or do I need to charge it first?

insomuch as you don't know how long it's been since it was manufactured, charge it when you get it would be my guess.

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Battery Case for Galaxy A16/ A17, 10000mAh Rechargeable Portable Charging Case with Wireless Charging Compatible for Galaxy A16/ A17 (6.7 inch) with Carplay Extended Battery Pack Charger Case (Black)

Battery Case for Galaxy A16/ A17, 10000mAh Rechargeable Portable Charging Case with Wireless Charging Compatible for Galaxy A16/ A17 (6.7 inch) with Carplay Extended Battery Pack Charger Case (Black)

Product ID: 146088165

Details

Number of Batteries
1 Lithium
Brand
UNKLOU
Battery Cell Composition
Lithium
Battery Capacity
3500 Milliamp
Recommended Uses For Product
Phone

📶Qi wireless charging support

🔋10000mAh high-capacity battery

🛡️360° full phone protection

€ 78.08

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Power up your Galaxy A16/A17 and never miss a moment!

POWER THAT LASTS - Boost your Galaxy A16/A17 battery life by 150%—stay connected all day without hunting for outlets.
STAY IN THE KNOW - 4-level LED power indicator keeps you updated on battery status—never get caught off guard again.
WIRELESS FREEDOM - Simultaneously charge your phone and case wirelessly with Qi technology—cut the cords, not your productivity.
SMART SAFETY TECH - Built-in smart chips prevent overheating, overcharging, and short circuits—charge confidently, anywhere.
ALL AROUND DEFENSE - 360° raised bezel and premium materials shield your phone from scratches and drops—style meets rugged reliability.

This sleek, black battery case for Galaxy A16/A17 packs a massive 10000mAh rechargeable battery that extends your phone’s life by 150%. Featuring Qi wireless charging compatibility, it allows simultaneous charging of phone and case, while providing 360° protection with a raised bezel design. Smart safety chips guard against overheating and overcharging, and a 4-LED indicator keeps you informed of power levels. Perfect for professionals on the move, it supports CarPlay and fits comfortably for all-day use.

Specifications

ASIN	B0H2LJHTXG
Best Sellers Rank	#40,053 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #1,211 in Cell Phones
Brand	UNKLOU
Color	Black
Compatible Devices	Galaxy A16/ A17 (6.7 inch)
Compatible Phone Models	Galaxy S26 (6.3 inch)
Customer Reviews	3.9 out of 5 stars 179 Reviews
Manufacturer	Shenzhen FengYunTong Technology Co., Ltd.
Mfr Part Number	LOU4
Model Number	FYT-F98
Number of Items	1
Other Special Features of the Product	Wireless
Special Feature	Wireless
Unit Count	1 Count
Warranty Description	12 month

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