Are CELLONIC batteries safe?

Yes, we use premium-grade cells with built-in protection against over-voltage, short-circuits and overheating. Every battery pack is tested several times before it ships, ensuring reliable, smooth performance.

Is this battery compatible with my device?

Match the model or part-number in our “Compatible with” list. If your device appears there, the battery fits perfectly—no adapters needed.

Can I replace the battery myself?

Depending on the battery type, it will either simply fit in or require only basic tools and care. If the original is glued or soldered in, or you're not confident in changing it yourself, we recommend using a professional to avoid any damage.

Can I use a higher- or lower-capacity battery than the original that came with my device?

Yes - as long as voltage and model compatibility match. Higher capacities deliver longer runtimes, lower capacities works the same but may run shorter.

Why choose CELLONIC over original, branded batteries?

CELLONIC replacement batteries offer reliable performance at a lower cost. Our batteries meet the highest standards, ensuring safe, long-lasting power, the same if not better than your original.

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CELLONIC 1x Battery for Headset/Headphone Compatible with Bang & Olufsen Beoplay H9, H9, Beoplay H8, PLB-103 - (650mAh, 3.7V)

Product ID: 194361186

Details

Battery capacity
650 Hour (mAh)
Battery cell composition
Lithium Ion
Brand
CELLONIC
Number of batteries
1 Nonstandard

⚡3.7V stable lithium-ion cell

🔋650mAh high-capacity power

🛠️Precision fit for Beoplay H8/H9

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$35.46

Duties & taxes included

In stock

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Description

🔋 Power up your Beoplay, stay ahead of the pack!

LIGHTWEIGHT COMPACT - Ultra-slim 40x35x6mm design keeps your headset sleek and comfortable without added bulk.
SEAMLESS COMPATIBILITY - Engineered for a perfect fit with Bang & Olufsen Beoplay H8 and H9 models—plug and play replacement.
ENDLESS LISTENING POWER - 650mAh battery ensures your Beoplay headset stays charged longer, so you never miss a beat.
SMART UPGRADE SMART SAVINGS - Extend your headset’s lifespan and avoid costly replacements with this cost-effective battery swap.
GERMAN ENGINEERED RELIABILITY - Tested under strict German standards for durability, giving you premium performance without the premium price.

CELLONIC’s 650mAh, 3.7V lithium-ion replacement battery is precision-engineered for Bang & Olufsen Beoplay H8 and H9 headsets. Tested to German durability standards, it offers long-lasting, stable power to extend your device’s life while providing a cost-effective alternative to original batteries.

Specifications

ASIN	B07DFMK18X
Batteries	1 Nonstandard Battery batteries required.
Best Sellers Rank	7,177 in Headphones, Earphones & Accessories
Brand	CELLONIC
Customer Reviews	3.9 3.9 out of 5 stars (43)
Date First Available	19 July 2018
Delivery information	We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
Guaranteed software updates until	unknown
Item Weight	0.02 Kilograms
Item model number	923378
Package Dimensions L x W x H	6.9 x 4.8 x 1.4 centimetres
Package Weight	0.02 Kilograms
Part number	[{"value":923378}]
Product Dimensions L x W x H	40 x 35 x 6 millimetres
Size	1x 650mAh
Warranty description	2 year manufacturer

Reviews

W**H

Works well with H9i headphones

First impression is good - no problem with fitting the battery into H9i headphones, the battery life seems to be comparable with the original one.

11.12.2025

L**R

Battery

Good price and does the job so far. Time will tell about how long the battery lasts.

16.02.2025

S**N

Battery

Came early. Well packed. Works perfectly. Wot else can I say

29.07.2025

A**R

Battery faulty not charging properly

Charging my headphones faulty battery Not charging my headphones battery is very faulty

16.09.2022

M**Y

Battery Replacement for B&O H9i headphones

Took seconds to fit, charged up and worked fine ... I guess we'll only know if it was worth the +£30 saving on an official B&O battery if it's still working in a couple of years from now!

23.10.2022

S**T

A tad fustrating

The battery seats inside the headphone but isn't a proper fit and unable to close properly I have to tape over the lock but did manage to charge up to use on Bluetooth ..it works but for these particular headphone not quite the right fit

25.12.2023

K**I

Real battery for B&O

Work great

4.10.2022

J**K

👌

18.05.2019

Y**K

Der Akku (in Beoplay h7) hält bei hoher Lautstärke circa 5 Stunden, bei leisem Musik hören circa 10 Stunden! Vergleichbar mit dem Original Akku? Nein! Unbrauchbar? Ja!

13.01.2021

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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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$35.46

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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