• New Patreon Tier and Early Access Content available. If you would like to support AVForums, we now have a new Patreon Tier which gives you access to selected news, reviews and articles before they are available to the public. Read more.

Cordless phone rechargeable batteries

Chippychap

Standard Member
Hi Guys, My limited knowledge of ni-cads says that you charge fully and then, in use, fully discharge so as not to give it adverse charge memory.
Yet, with cordless phones they spend most of their time on charge.
Is there a way of looking after the batteries so as to prolong their working lives?
Wondered if taking the handsets off the base until the batteries nearly run out then whack 'em back on the charger.
Any hints or tips? :lease:
 

nmdale

Active Member
We take the phones off the cradle once every two months or so and let them go completely flat, we have three of them and do two at a time so that we have a back up and then do the third.

We also only use the cheap rechargeable ones from a well known pound shop, but they last at least a year and I think this set has been in two up to now.

You could however attribute the longevity of these batteries to the fact that we use our mobiles 9/10 to make any phone calls!
 

Chippychap

Standard Member
So if I excercise the battery's like you do then I should get max life from 'em.
Thank you.
 

LV426

Administrator
Staff member
Most new equipment comes with NiMH nowadays and they don't suffer the "memory effect" like NiCads do. And most mobiles and some cordless come with Li-Ion which are better still.
 

Chippychap

Standard Member
They are not interchangeable though are they?
I have the option of a cheaper new set of phone or a second hand "Rolls Royce" set-up so not sure what the older one uses.
AFAIK the only thing that can deteriorate with these phones are the batteries, fingers crossed.
Thank you LV426
 

LV426

Administrator
Staff member
NiCad and NiMh are the same voltage, but require different charging electronics. So, they MAY be interchangeable if
a) they are the same size (eg standard AAA)
b) the charger circuitry in the system can cope with either (many, but NOT all, can).
You can only find out for sure by looking at specs/manual

Any kind of lithium chemistry and voltage is sufficiently different that interchangeability is almost certainly a "no".
 

tonyc6400

Standard Member
The first thing I do after buying new phones is take the low capacity batteries out and replace them with high capacity rechargeables. I have not encountered any problems in the 10 years of using them. Nothing is everlasting but I hate the original batteries not keeping me in talk time for long enough - I guess I must talk too much.
Happy Christmas!
 

Chippychap

Standard Member
Thanks guys and Merry Christmas to you too Tonyc
 

The latest video from AVForums

Guardians of the Galaxy Xmas Special, Strange World, Bones and All, and Cabinet of Dr Caligari in 4K
Subscribe to our YouTube channel
Support AVForums with Patreon

Top Bottom