Browse

BTI Replacement 3 cell battery for HP 850 G7 855 G7 850 G8 ZBOOK FIREFLY 15 G8 replacing OEM part numbers 28Y92UC CC03XL HSTNN-DB90 L77622-2C1 L77622-2C2 L77991-005 // 56Whr

by BTI

£65.99from 2 retailers

GTIN05059902006257

EAN5059902006257

MPNL77991-005-BTI

Prices updated 12 Apr 2026

Compare 2 Retailers

Back to the Office

BEST PRICE

In stock3-5 working days

£65.99

Best Price

GamingKit

In stockStandard delivery in 3 working daysNew

£68.16

+£2.17 vs cheapest

£68.16 total inc. delivery

Go to store

Amazon

Check live price on Amazon.co.uk

eBay

Check availability and price on eBay.co.uk

Check on eBay

Product Description

Lithium-Ion (Li-Ion). 5850 mAh 68 Wh. 11.55 V. Brand compatibility: HP. Black. Number of batteries included: 1 pc(s). Features. Compatible products. COMPAQ. Brand compatibility. HP. Product colour. Black. Battery voltage. 11.55 V. Number of battery cells. 3. Battery capacity. 5850 mAh. Battery technology. Lithium-Ion (Li-Ion). Packaging data. Quantity per pack. 1 pc(s). Number of batteries included. 1 pc(s)

More products from Back to the Office

Browse their full range on Yorkshire.com

Related Products

Browse all Laptop Replacement Screens

Black Dell Pro 14 laptop with 14" Full HD+ display, sleek design, UK keyboard, Windows 11 Pro interface visible.

DELL Pro 14 Essential PV14255 AMD Ryzen™ 7 PRO 250 Laptop 35.6 cm (14") Full HD+ 16 GB DDR5-SDRAM 512 GB SSD Wi-Fi 6 (802.11ax) Windows 11 Pro UK English Black

£712.87

Black Lenovo V15 G4 laptop with 15" screen, Ryzen 5, 16GB RAM, 256GB SSD, Windows 11 Pro, and numeric keypad.

Lenovo V15 G4 Ryzen 5 Laptop with 16GB RAM and 256GB SSD

£427.46

Black Lenovo V15 G4 laptop, 15.6-inch screen displaying Windows 11, sleek keyboard, Intel Core i5, 8GB RAM, 256GB SSD.

Lenovo V15 G4 Intel Core i5 Laptop with 8GB RAM and 256GB SSD

£476.92

Grey Samsung Galaxy Book4 Ultra laptop, 16" touchscreen, sleek design, backlit keyboard, thin bezels, Windows 11 Pro.

Samsung Galaxy Book4 Ultra NP964XGL-XG1UK laptop Intel Core Ultra 7 155H 40.6 cm (16") Touchscreen WQXGA+ 32 GB LPDDR5x-SDRAM 1 TB SSD NVIDIA GeForce RTX 4050 Wi-Fi 6E (802.11ax) Windows 11 Pro Grey

£2490.32

Grey Samsung Galaxy Book5 laptop, 15.6" screen, sleek design, Intel Core Ultra 7, Windows 11 Pro, UK keyboard layout.

Samsung Galaxy Book5 NP754XHD-CG2UK laptop Intel Core Ultra 7 255U 39.6 cm (15.6") Full HD 16 GB LPDDR5x-SDRAM 512 GB SSD Wi-Fi 7 (802.11be) Windows 11 Pro UK English Grey

£917.96

Lenovo V15 G5 laptop, 15.6-inch, black, Intel Core i5, 16GB RAM, 512GB SSD, Windows 11 Pro, sleek design.

Lenovo V15 G5 Intel Core i5 Laptop with 16GB RAM and 512GB SSD

£596.92

From£65.99Back to the Office

Buy Now