what is the size equivalent to Duracell size 10 batteries? I bought size 312 and it is too big for my hearing aid

Ask the Seller, but need to get size 10 in any brand, or Starkey.

does this battery have the brown tab

Yes they have a small brown tab. They are a zinc/air battery and the tab seals the small holes in the battery so that it is not producing power until the tab is removed. I have used these batteries for many years without problems and they last me 7 to 8 days.

Will this fit the starkey 700 rechargable hearing aid

I’m sorry but I have no experience with the rechargeable hearing aid. I don’t see any information that leads me to believe this battery will work though.

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Starkey Products Size 312 Premium Hearing Aid Batteries 60 Pack - Mercury-Free - Zinc Air Technology - Made in USA - Plus Keychain Battery Case

Product ID: 421804686

Details

Battery cell composition
Zinc-Air
Brand
Starkey
Recommended uses for product
Hearing Aid
Reusability
Single Use
Voltage
1.45 Volts

⚡1.45V Zinc Air tech for peak performance

🔋60-pack ultra fresh power

🇺🇸Made in USA for max freshness

Description

🔋 Stay powered, stay connected — hear every moment with Starkey!

FRESHNESS GUARANTEED - Made-to-order batteries ensure you get the freshest power every time.
BULK PACK CONVENIENCE - 60 batteries per pack means you’re stocked and ready for months ahead.
PROUDLY MADE IN THE USA - Locally manufactured to avoid long shipping delays and preserve battery life.
BONUS KEYCHAIN BATTERY CASE - Never lose a battery again with the included sleek, portable holder.
PREMIUM ZINC AIR TECHNOLOGY - 1.45V output delivers longer-lasting, reliable hearing aid performance.

Starkey Size 312 Premium Hearing Aid Batteries come in a 60-pack, featuring fresh, made-to-order zinc air cells with 1.45V output. Manufactured in the USA to ensure maximum battery life and quality, this pack includes a handy keychain battery case for on-the-go convenience.

Specifications

ASIN	B0848D7ST9
ASIN	B0848D7ST9
Antenna Location	Hearing Aid
Battery Cell Type	Zinc-Air
Brand	Starkey Products
Compatible Phone Models	All hearing instruments that use a 312 battery
Customer Reviews	3.8 3.8 out of 5 stars (11)
Customer reviews	3.8 3.8 out of 5 stars (11)
Manufacturer	Starkey Products
Manufacturer	Starkey Products
Package Dimensions	9.3 x 5.11 x 3.4 cm; 59 g
Reusability	Single Use
Voltage	1.45 Volts

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