Browse
Black BTI 6-cell laptop battery for Lenovo Thinkpad, rectangular shape with white text and certification symbols.

BTI 45N1045 compatible 48Wh 6-cell battery for LENOVO Thinkpad E430 E431 E440 E445 E530 E531 E535 E540 E545

by BTI

£57.99from 3 retailers
GTIN05059902166722
EAN5059902166722
MPN45N1045-BTI
Prices updated 7 Jun 2026

Compare 3 Retailers

Save up to £3.88 by comparing
Prices checked 10d ago
Back to the Office logo

Back to the Office

BEST PRICESave £3.88 vs highest
In stock3-5 working days
£57.99
Best Price
ComputersDeal logo
In stockStandard delivery in 3 working days
1 deal available
£72.80£60.66

2.67 vs cheapest

Go to store
GamingKit logo
In stockStandard delivery in 3 working daysNew
£61.87

3.88 vs cheapest

Go to store

Amazon

Check live price on Amazon.co.uk

eBay

Check availability and price on eBay.co.uk. Yorkshire.com may be paid for purchases made through this link, by eBay Partner Network.

Check on eBay

Can’t find it elsewhere?

Product Description

Lithium-Ion (Li-Ion). 4400 mAh 48 Wh. 10.8 V. Black. Number of batteries included: 1 pc(s). Features. Product colour. Black. Battery voltage. 10.8 V. Number of battery cells. 6. Battery capacity. 4400 mAh. Battery technology. Lithium-Ion (Li-Ion). Packaging data. Number of batteries included. 1 pc(s). leaflet. Origin Eco. Origin Promo

More products from Back to the Office

Browse their full range on Yorkshire.com

From£57.99Back to the Office
Buy Now