Can you change the batteries

Yes, its a bit difficult to remove the top section, it is pressed on and not glued, so pulling and twisting is required, but there are 3 x LR41 button cells which MUST be replaced the right way round !!! , flat bottom facing the spring. Easier if you Insert the 3rd battery in-between the other two DONT use any metalic object to remove or assist in inserting the batteries - you will short it out and discharge the cell in seconds.

In the box with the product? Its on a little chain attached to the lock when you first purchase it

How do i change the batteries?

VERY carefully by an adult ! lever, twist, pull the top section off and remove the battery module. MAKE SURE that the white plastic TAB is removed first -( this is only used to separate batteries in transit and probably the cause of many complaints that the pen 'doesnt work') Use a NON metallic object to pop out the old batteries making sure the spring stays in place. The batteries are 3 x LR41 button cells. When replacing make sure the flat bottom of the cell faces the spring and they are all inserted the SAME way round. The last cell should be inserted in between the other two, separating them with something PLASTIC, like a fork prong or similar - DONT use anything metallic, you will short out the cell and it will be discharged in seconds!!! Put the module back into the pen with the button in line with the pen housing button. Press the top back on firmly, making sure the UV LED aligns with the cap hole. Voila !! I know this as I took one apart to find out what batteries would be needed in the future

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Harry Potter Notebook Set for Children, Fans, Diary with Lock and Secret Pens, Stationery Set, School Supplies (Brown UV Pen)

Product ID: 150065788

Details

Brand
Harry Potter
Colour
Maroon
Number of items
1
Pages
150 Pages Per
Ruling type
Lined
Sheet size
A5

📏A5 size - perfect portable journal

🔒Lockable diary for privacy

🖋️UV invisible ink pen included

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$45.40

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Unlock your inner wizard with every secret scribble! 🧙‍♂️

PRIVACY SECURED - Lockable hardback diary keeps your thoughts and secrets safe from Muggles.
VERSATILE STYLISH - Ideal for school, work, or creative screen-free journaling with a luxurious faux leather cover.
OFFICIALLY ENCHANTED - Authentic Harry Potter licensed design that instantly connects you to the wizarding world.
SECRET WRITING MAGIC - Write hidden messages only visible under UV light—your personal spellbook awaits.
PERFECT GIFT FOR WIZARDS - Beautifully boxed set makes a must-have collectible and thoughtful gift for fans of all ages.

This officially licensed Harry Potter A5 notebook set features a lockable faux leather hardback diary paired with a UV invisible ink pen, enabling fans to write secret messages only revealed under UV light. Perfectly sized for school, office, or creative journaling, it combines privacy, style, and magical fandom in one collectible gift set.

Specifications

ASIN	B07WQY5HWP
Best Sellers Rank	4,724 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 53 in Diaries (Stationery & Office Supplies)
Binding	Unknown Binding
Brand Name	Harry Potter
Colour	Maroon
Country of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (8,117)
Global Trade Identification Number	08427934352647
Item Dimensions L x W	21L x 14.2W centimetres
Manufacturer	Cerda
Number of Items	1
Number of Pages	150 Pages Per Sheet
Paper Size	A5
Pattern	Hogwarts, Magic Symbols
Ruling Type	Lined
Special Features	Battery is Required, Encourages Self-Expression, Hard Cover, Invisible Ink Magic Pen, Lockable Diary
Specific Uses For Product	Brainstorming, Drawing, Journal Writing - Secret Keeping, School, Sketching
Style	Stationery Set
Subject Character	Harry Potter
Theme	Harry Potter
Unit Count	1.0 count

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TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

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