This brand new cordless phone battery comes with a free 1 Year Warranty. Budget Batteries guarantees that it will work with your Sony MDR-RF840 cordless phone, will perform as well or better than the original counterpart, and will be free of defects. Budget Batteries has the widest selection of cordless phone batteries, from hard-to-find replacements for older Sony Ericsson Cordless Phones to the newest Sony Ericsson cordless phone models. To get the most life out of any Ni-MH battery, do not leave the battery charging overnight; unplug the battery once it reaches a full charge. Overcharging a cordless phone battery will eventually reduce its capacity and overall life span.
Technical DetailsManufacturer: Empire Scientific
Shipping Info: This item will ship within 24-48 hours, and a tracking number will be emailed to you once it ships.
Dimensions: 1.83''L x 0.92''D x 0.45''H
Product Weight: 0.21 lbs.
UPC Code: 9322537317
Capacity: 700mAh
Chemistry: Ni-MH
Voltage: 2.4