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Lithium ion AA batteries - early review
Posted by: mattkime
Date: November 13, 2021 09:57PM
I ordered these - [www.amazon.com] based on [forums.macresource.com]

I bought them to use in my Yale smart locks. I've had some trouble with the locking / unlocking motor lacking 'oomph' is some circumstances. NiMh batteries are 1.2V and are therefore a bit suspect. The Li-ion batteries are 1.5V.

The new batteries charged quickly and the locking mechanism is operating with certainty. It'll take me a while before I know how long the batteries last - potentially a few months.



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Re: Lithium ion AA batteries - early review
Posted by: space-time
Date: November 13, 2021 10:08PM
What model of smart lock? Thanks
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Re: Lithium ion AA batteries - early review
Posted by: mattkime
Date: November 13, 2021 10:17PM
Yale Security YRD226-ZW2-619 YRD226ZW2619 Touchscreen Deadbolt, Satin Nickel

[www.amazon.com]



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Re: Lithium ion AA batteries - early review
Posted by: space-time
Date: November 14, 2021 09:54AM
Those batteries are rated for 3300 mWh, and assuming constant 1.5V, that comes to 2200 mAh.

the amazon page says:

Quick Charge in 2H: Advanced iQuick charging technology with DC 5V/2A USB input, full charge 4 batteries in 2 hours with included 4 in 1 cable. Build-in LED light shows the charging process, red light on means charging, blue light means fully charged.

how come 2A split into 4 cells, 500 mA per cell, can charge a 2200 mAh in 2 hours? did I make an error in my calculations? Thanks
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Re: Lithium ion AA batteries - early review
Posted by: sekker
Date: November 14, 2021 05:12PM
Good to know!

I purchased our AA Li ion batteries for our August smart locks.

[forums.macresource.com]
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