• RAYOVAC®'s 9V Lithium battery will only last 10 years in ionization smoke alarms. However, RAYOVAC®'s 9V Lithium will extend the life of most high drain 9V lithium devices significantly more than a standard alkaline battery.

    • The RAYOVAC® 9V Lithium will work properly in any other smoke alarm requiring the Ultralife lithium battery. Under normal use conditions, the battery should power ionization smoke alarms for up to 10 years. Please note that smoke alarms should be replaced every 10 years, as they lose sensitivity over time due to age and dust.

      Also note that many smoke alarms come with recommendations to replace the battery with a specific brand of 9V battery (oftentimes Alkaline or Zinc Carbon chemistries). The RAYOVAC® 9V Lithium is also an acceptable replacement battery in these devices and will power any ionization smoke alarm for up to 10 years.

      • Household Products
        Digital scales, Garage door openers, Photographic flash units and light meters, Remote controls for RC hobbies, & Television/VCR/DVD/Stereo remote controls.
      • Home and Personal Safety
        Memory backup (e.g. clock radios, telephones, etc.), Smoke Alarms, Baby monitors, Emergency exit alarms, Carbon monoxide alarms, Flood alarms, Gas alarms, Home security devices, Electronic entry systems, Wireless security keypads,Door/window alarms, Glass break detectors, Motion sensors, Sound detectors, Passive infrared detectors, Pet containment systems, Panic buttons, Package tracking transmitters, Stun guns, & Personal defenders.
      • Medical
        Home healthcare equipment, ambulatory infusion pumps, Blood pressure monitors, Blood analyzers, Biofeedback systems, Bone growth simulators, Wireless patient monitors, Digital thermometers, External pacemakers/programmers, Galvanic stimulators, Muscle stimulators, Heart/Holter monitors, Pediatric scales, TENS units, Pulse oximeters, & Telemetry systems.
      • Wireless Communication
        Cargo container location beacons, Electronic toll collection systems, Military training targets, Laser tags, Remote infrared mice, Silo transducers, Vehicle/vessel tracking sensors, & Wireless remote controls.
      • Instrumentation
        Bar code scanners, Data recorders, Electronic parking meters, Digital gauges and scales, Force gauges, Voltmeters, Cable route tracers, Capacitance meters, Lux meters, Multimeters, Signal tracers, Metal/stud detectors, Gas flow correctors, Industrial valve actuators, Radar Detectors, Anti-static strap testers, Wireless switches, Microfilm cassettes, Radiosonde weather balloons, Utilities load controllers, Point-of-purchase merchandisers, Profilometers, Video head testers, & Noise cancellation equipment.
      • Marine/Aviation
        Marine compasses, Scuba-diving computers, Noise canceling headphones, Air samplers, Depth finders, Digital barometers, Global positioning systems, Marine smoke alarms, & Weather measurement instruments
      • Music/Audio
        Musical effects devices, Wireless microphones, Fuzz boxes, Wah-Wah pedals, Wireless preamps, Guitar pickups, Wireless transceivers, Wireless tuners, Portable music equipment, & Metronomes
    • As a general rule, batteries, including lithium, should not be left in a product once the battery is discharged. The 9 V lithium batteries from RAYOVAC® are hermetically sealed and the chance of leakage is quite small.

    • The specified storage temperature range for RAYOVAC® 9V Lithium batteries is -40° C to 60° C. However, all batteries do best when stored in a cool (not cold) dry location.

    • An Ionization smoke alarm uses an ionization chamber, which is an air-filled space between two electrodes, and permits a small, constant current between the electrodes. Any smoke that enters the chamber absorbs the alpha particles, which reduces the ionization and interrupts this current setting off the alarm.

    • To determine whether you have an ionization-type or photoelectric-type smoke alarm, look at the label on the back of the alarm. If it's an ionization type there will be a statement on the label similar to the following: "This device contains 0.9 microcurie of americium." If such a statement is not on the label then you have a photoelectric alarm.

    • In the US, Oregon state law (ORS 497.297) requires a 10 year smoke alarm battery. Michigan state law (MCL 125.1504c) requires a 5 year smoke alarm battery which can be satisfied by some alkaline batteries but they recommend a Lithium 9V battery. Louisiana state law (R.S. 40:1573 and 1581) requires a 10 year sealed lithium battery smoke detector in one or two family dwellings sold or leased after January 1st, 2011. Many other towns, cities, and municipalities also require 10 year smoke alarm batteries. Please contact your local authorizes to learn more.

      • Installation
        The National Fire Protection Association recommends installing smoke alarms on every level of your home, including the basement, making sure that there is an alarm outside every separate sleeping area. New homes are required to have a smoke alarm in every sleeping room and all smoke alarms must be interconnected.
      • Maintenance
        Regular cleaning of smoke alarms can prevent false alarms caused by the buildup of dust or other contamination such as flies. Photoelectric (optical) type alarms are more susceptible to contamination due to possible interference with the light source and sensor. A vacuum cleaner can be used to clean both ionization and photoelectric alarms externally and internally.
      • Testing
        Test alarms at least monthly by pushing the test button.
      • Replacement
        Smoke alarms become less reliable with time, primarily due to aging of their electronic components, as well as from dust and contamination, making them susceptible to nuisance false alarms. Replace all smoke alarms, including alarms that use long-life 10 year non-replaceable batteries and hard-wired alarms, when they are 10 years old, or sooner if they do not respond properly when tested.
    • Following is advice from the U.S. Department of Transportation's Pipeline and Hazardous Materials Safety Administration's web site on flying with battery-powered devices:

      • Batteries pose little risk contained in the devices they power. Taking the battery out of the device does not enhance safety. To be safest, carry the device with you, not in your checked baggage. Do not remove the battery!
      • Carry your battery-powered devices or spare batteries in your carry-on baggage. In the passenger compartment, flight crews can better monitor safety conditions to prevent an incident, and can access fire extinguishers, if an incident does happen.
      • Finally, if you must carry a battery-powered device in your checked baggage, package it to prevent inadvertent activation. Cordless power tools, for instance, should be packed in a protective case, with a trigger lock engaged.

      Many travelers like the convenience of readily available spare batteries. It's safe to travel with spare batteries, as long as you follow these simple spare battery tips:

      • Pack spare batteries in carry-on baggage. In the passenger compartment, flight crews can better monitor safety conditions to prevent an incident, and can access fire extinguishers, if an incident does happen.
      • Keep spare batteries in the original retail packaging, to prevent unintentional activation or short-circuiting.
      • For loose batteries, place tape across the battery's contacts to isolate terminals. Isolating terminals prevents short-circuiting.
      • If original packaging is not available, effectively insulate battery terminals by isolating spare batteries from contact with other batteries and metal. Place each battery in its own protective case, plastic bag, or package. Do not permit a loose battery to come in contact with metal objects, such as coins, keys, or jewelry.
      • Use only chargers designed for your type of batteries. If unsure about compatibility, contact the product manufacturer.
      • Take steps to prevent crushing, puncturing, or putting a high degree of pressure on the battery, as this can cause an internal short-circuit, resulting in overheating.
      • Please see the following site for more information about traveling with batteries:
    • RAYOVAC®'s 9-volt battery is designed for safe operation under a wide range of usage and environmental conditions. A key design feature is the use of Safety Shutdown Separator.

      RAYOVAC®'s 9-volt battery is constructed using a safety shutdown separator, which upon either an internal or external short circuit, or current overload condition, will prevent thermal runaway within the cell. The cell electrodes, consisting of a lithium anode and manganese dioxide cathode, are separated by a safety shutdown separator, which is a microporous tri-layer membrane with a single layer of polyethylene membrane between two layers of polypropylene membrane. When a cell is overloaded or short circuited, the polyethylene membrane layer melts upon reaching a temperature of 134° C, significantly reducing ion flow (i.e., current). The reduction in current permits the cell to accept a short circuit or overload condition and shutdown without venting. The safety shutdown is a non-reversible process; once the cell has shutdown it is no longer usable.

    • Lithium batteries will last longer than any other battery types, including alkaline and zinc carbon (lowest cost) batteries, in most high drain devices. For example, RAYOVAC®'s 9-volt lithium battery will last for 10 years in an ionization-type smoke alarm (the most common type), compared to about 3 to 5 years for an alkaline battery and just 1 year for a zinc carbon battery. In a photoelectric smoke alarm the lithium battery will last anywhere from 3 to 7 years vs. about a year for alkaline. Depending on the specific device, the same approximate ratio holds true for other security devices such as door/window transmitters, infrared motion detectors and glass break detectors. It is generally a good idea to follow the manufacturer's battery recommendations.

    • Lithium batteries can be used in intrinsically safe circuits in some cases. A current limiting device may or may not be necessary depending on the device. The battery itself is usually not rated as being intrinsically safe but is tested as part of the entire device. One example where a RAYOVAC® 9-volt lithium battery is being used in an intrinsically safe device is a Personal Alert Safety System (PASS) carried by firefighters, sometimes called a "fireman down alarm."

    • Lithium-manganese dioxide batteries do not exhibit an actual self-discharge mechanism due to the physical separation of the lithium anode and manganese-dioxide cathode. What does occur, however, is a very gradual degradation of the chemistry over time, which can be equated to self-discharge from a capacity loss perspective. In that regard, you can expect a capacity loss of approximately 1.5% per year for our batteries. This loss occurs both in storage and in use.