33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
431971
37187
2
Create a timeline
Public Timelines
For educational institutions For teachers For students Cabinet
For educational institutions For teachers For students Open cabinet
FAQ
Create a timeline
Public timelines
FAQ
About & FeedbackTermsPrivacyFAQ
Support 24/7  
CabinetGet premium
Donate

aug 26, 1977 - zinc-air battery

Description:

A mercury free battery introduced to have a greater capacity when it come to volume since the amount of mercury has depleted. Was a major part of the incoming technology of hearing aids with much credibility.

Added to timeline:

Deaf Technology 1960s-2017

ByBlanche Padecio
13 Dec 2017
0
0
535

Date:

aug 26, 1977
Now
~ 48 years ago
About & FeedbackTermsPrivacyFAQ
Support 24/7  
CabinetGet premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL