50% off on alot of oral b electric toothbrushes, don't know how these compare to the oral b vitality precision clean which i use. Also some other specials on plastic toothbrushes
Oral b vitality $22.50
https://www.woolworths.com.au/shop/productdetails/332537/ora…
Oral b 1500 pro $65
https://www.woolworths.com.au/shop/productdetails/143880/ora…
Oral b pro 800 $50
https://www.woolworths.com.au/shop/productdetails/83607/oral…
Correct me if im wrong. I think the only difference between this and the usually discounted vitality precision clean (the blue and white model) are battery type, texture and colour of the grips. They even use the same charging base.
NiMh instead if NiCd. In my experience there isn't much difference in real world use times. Look for a lithium cell if you want to charge once per week without noticable chug.
The batteries are user replaceable but i think they are soldered. Use google to see how.