(emphasis in original) While they work fine with other quality alkaline batteries from reputable manufacturers, I'm curious as to why the manual specifically forbids the use of lithium batteries. Even though 9-volt batteries are widely available and typically cheaper if purchased in quantity, most smoke alarms still utilize them. As an alternative, a decent quality 9-volt battery detector should have an expected lifespan of at least 10 years. NOTE: Do not use Lithium batteries in this unit. Most cheap smoke alarms use 9-volt batteries that last for one to two years. It then showed a low voltage of like 0.6v, and then it was able to charge in the USB charger.Īfter this charge, it now measures a voltage of 4.05v. Use of a different battery may have a detrimental effect on the alarm operation. I finally got it to do something by wiring it to a power screwdriver and running it for a few seconds. It would show a voltage of 1.5v but would not charge or discharge. The highest quality, longest life battery on this list with the highest price. It would not discharge on my Opus charger. LA522 Energizer 9V Advanced Lithium Battery.
#Aa lithium batteries for smoke detectors full#
However, it would show full on the USB charger and would not charge. This particular battery would continue to show 1.5v on measurement. When I was doing some charge and discharge cycles, one of the 4 exhibited some quirky behavior:Īfter a particular discharge cycle, it would not turn fully off, like the other 3 batteries would (they would go completely dead and show 0v on a multimeter and would need to be jumped back alive). My smart charger, Opus BT-C3400, can charge NiMH and Li-Ion batteries, but not these 1.5v Li-Ion batteries, which I assume is because of their non-standard voltage. They are charged using USB chargers which provide 5v to the battery. However, they have a tiny circuit board in there to step down the voltage to 1.5v steady, to be used in most consumer devices.Ĭapacity is rated at 3400 mWh, not that different from good NiMH batteries. Inside, they have a lithium-ion rechargeable cell, and this chemistry should produce 3.7v. This category of batteries seems like pretty interesting tech, based on teardown videos on youtube. I bought a set of 4 Deleepow 1.5v rechargeable lithium AA size batteries, from Amazon. No memes (pictures with superimposed text), shit postsĬomplete rules: /r/batteries/about/rules/.If asking a question, ask the actual question, fully yet concisely, right in the title.Be civil: do not insult no all-caps, no excessive "!" and "?", please.Dangerous or damaging (tasers, EMP, vaping).Organic spam from cell and battery manufacturers.Education and safety about batteries and related technologies.Pictures or cells, batteries, power banks, UPSs.Cell, battery, and BMS recommendations and comparisons.
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