Do these work as backup batteries for the TI-84 calculator?

The TI-84 uses an SR44SW backup 11.6mm diameter coil cell 5.4mm thick that contains a more expensive silver-oxide chemistry that maintains a more constant cell voltage over the life of the battery, has a 30% greater capacity, and is much better sealed and less likely to leak. The voltage of the lower cost LR/LG/AG cell chemistry falls in a straight line over the cell life and will drop below the required minimum voltage for the TI-84 when about 1/3 of its (smaller) capacity is used up. If left installed it's far more likely to leak than a battery with wristwatch rated seals. (Last letter is a W) In summary. This battery will fit into a TI-84 and function for about 1/5th as long as an SR44SW (or a SR303SW, SR357SW, SR1154SW, ... etc.) and then it's likely to leak and ruin the calculator.

Does this have the "nipple" on the underside? I've found some LR44 batteries do and some don't and the ones without will NOT work in my device.

The ones I ordered (AG 13/357A) do have the nipple on the underside- the nipple is almost the same diameter as the battery itself- just an inth smaller. They work great and much cheaper than the ones I saw locally -- which cost more than the items they powered!

Anyone use this for a Hearing applifier? If so how long do they last?

I have not used these for a hearing amplifier.

Will these work in a safesound personal alarm?

I can only answer that these batteries have worked in several different electronic devices I own

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AG13-357 - LR44 button cell watch batteries for Watches, LED torches - 10 Pack

AG13-357 - LR44 button cell watch batteries for Watches, LED torches - 10 Pack

Product ID: 56033686

Details

Battery capacity
1.5 Volts
Battery cell composition
Alkaline
Brand
Yesker
Number of batteries
10 LR44
Recommended uses for product
Watch

⏳Up to 100 hrs runtime

🔋1.5V alkaline power

🔩Durable metal casing

B/.20

Duties & taxes included

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Description

🔋 Power your essentials with precision and longevity!

BULK 10 PACK CONVENIENCE - Never run out with a ready supply for all your devices
LONG LASTING PERFORMANCE - Up to 100 hours in LED torches keeps you powered longer
COMPACT LIGHTWEIGHT DESIGN - Slim 6.4x1x19 cm pack, perfect for on-the-go replacements
PREMIUM GOLD PLATED CONTACTS - Ensures superior conductivity and corrosion resistance
RELIABLE 1 5 V ALKALINE POWER - Consistent energy for watches, torches & gadgets

The AG13-357 LR44 button cell batteries deliver reliable 1.5V alkaline power with up to 100 hours of runtime in LED torches. Featuring gold-plated contacts and a durable metal casing, this 10-pack ensures consistent performance for watches, calculators, cameras, and more—perfect for professionals who demand dependable energy on the go.

Specifications

ASIN	B0006DR7S4
Antenna Location	Watch
Battery Capacity	1.5 Volts
Battery Cell Type	Alkaline
Battery Weight	2 Grams
Best Sellers Rank	2,192 in Disposable Household Batteries
Brand Name	Yesker
Compatible Phone Models	Watches
Customer Reviews	4.5 4.5 out of 5 stars (4,372)
Global Trade Identification Number	00812227030179
Item Dimensions	6.4 x 1 x 19 centimetres
Item Weight	0.04 Pounds
Manufacturer	Tian Qiu
Model Name	Alkaline batteries
Model Number	AG13
Number of Batteries	10 LR44 batteries required.
Reusability	Single Use
UPC	812227030179 706569012248 740931303763
Unit Count	10 count
Voltage	1.5 Volts

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