Add $175.00 for FREE shipping
UL-Recognized Ultralife 9-Volt Lithium Battery
Ultralife Lithium 9V Battery
Ultralife Lithium 9V Batteries
Ultralife Lithium 9v Battery
Item# 9820L9V
Free shipping on orders over $175 - See Details


  • Four times longer life than alkaline batteries in most applications
  • Up to 10 year life when used in most residential smoke detectors
  • Ideal for applications where frequent battery changes are inconvenient or impractical

Essential Info

The Ultralife Lithium 9V Batteries are consumer-replaceable batteries that lasts up to 4 times longer than ordinary alkaline 9V batteries and 10 times longer than carbon-zinc batteries. This primary battery has the highest energy density, flattest discharge voltage curve, longest shelf life, widest operating temperature range, and lightest weight of any comparable 9-volt battery.

What's Included

  • 1 Ultralife Lithium 9V Battery
  • More Info

    A 10-year service life makes Ultralife Lithium 9V Batteries the choice for major smoke alarm manufacturers for their premium lines of 10-year ionization-type smoke alarms. And as a consumer-replaceable battery, consumers can instantly upgrade their smoke alarms, too.

    The UL-recognized Ultralife Lithium 9V Batteries contains no mercury, lead or cadmium and has a patented safety mechanism. These batteries are ideal for OEM applications, including medical, wireless security, safety, and industrial uses, or as a consumer-replacement battery in 9-volt devices for home safety, music/audio, and recreation.

    Note: Batteries are not returnable once package is opened.



    Manufacturer Product No.:9V ULTRALIFE


    16 Ratings
    5 star: 69%  (11)
    4 star: 19%  (3)
    3 star: 6%  (1)
    2 star: 6%  (1)
    1 star: 0%  (0)
    Average Customer Rating
    (16 customer ratings)
    Share your thoughts with other customers
    PHILLIP -- cape coral, FL   3/29/2012
    excellent service on missing part. responded immediately. great service
    GEORGE -- longmont, CO   10/24/2010
    Great investment if you tire of ladders and beeping
    JOANN -- fairbanks, AK   7/11/2010
    Great service from Smarthome. Batteries came individually packaged in each box.
    KENDRICK -- pleasantville, NY   6/10/2010
    I have used these batteries before and I think they are good. However, don't expect them to actualy last five years in your smoke detector.....two to three yars is probably more realistic.
    BRIAN -- shoreline, WA   10/24/2009
    It powers 9v stuff. Time will tell if it lasts much longer than normal 9v batteries.
    duane samuels -- fort lauderdale,Florida   10/17/2009
    I use these batteries first in my bass guitar,when I use to work on a cruise ship,it lasted the whole six months contract and some,,I use change batteries every month,these really last longer than alkaline and 5 times longer for real,,,worth the price
    Richard -- Baltimore   8/26/2008
    This battery holds up to its promise! It is ideal to use when a standard 9 volt battery just won't cut it.
    SCOTT -- orlando, FL   6/9/2008
    PAUL -- philadelphia, PA   2/1/2008
    Looks OK. Quality depends on life - wait a year.
    KATE -- fresno, CA   7/18/2007
    Just what I needed for my home security system.
    JULIA -- houston, TX   2/3/2007
    No problem with this product.
    B.L. -- burke, VA   3/19/2005
    SMARTHOME is the only place I can find these batteries and they are great for the fire alarms and the carbon monoxide alarms. Thanks!

    Related Items

    Sign-up for Exclusive Email offers 
    How to Order Track Your Package Shipping Returns Contact Us Customer Service Retail Store
    Getting Started Learning Center FAQ Dealers Customer Testimonials Affiliate Program
    About Us INSTEON Press Awards Employment Guarantees Security & Privacy
    Free Catalog Email Newsletter Forum RSS Site Map
    Have questions? Call us at 800-762-7846 (Mon-Fri 5am-7pm and Sat 6am-3pm PT) or send us a message
    Place your order by 3pm PT for same day shipping
    Copyright 1995-2014 SMARTHOME™
    Verisign Secure Site PayPal Acceptance Mark