The Naked Scientists

The Naked Scientists Forum

Author Topic: Is it better on the battery to let it go completely dead and then charge?  (Read 4860 times)

Offline Simulated

  • Neilep Level Member
  • ******
  • Posts: 7188
  • Thanked: 1 times
  • Simulated..What more do you needa know :P
    • View Profile
    • Facebook
Is it better on cell phone battery (well any battery) to let it go completely dead then charge it just charge it when it still has some type of charge? When I say better, I mean improve the lifetime per charge and the over all life time. The laptop manuel says to leave it plugged in as much as possible when in use, but I can't find anything for the cell phone. I've heard rumors, but I'd just like to clear this up.

Thanks Sim  :)


 

lyner

  • Guest
It depends entirely upon what sort of battery technology is used.
NiCads are much better run down completely then charged completely or they develop 'memory' and lose capacity. The newer types are much more tolerant.
 

Offline Pumblechook

  • Hero Member
  • *****
  • Posts: 569
    • View Profile
I gather for li-ion batts you shouldn't run them right down. 


http://www.batteryuniversity.com/
 

Offline Simulated

  • Neilep Level Member
  • ******
  • Posts: 7188
  • Thanked: 1 times
  • Simulated..What more do you needa know :P
    • View Profile
    • Facebook
Mine is a lithium ion battery. So I shouldn't run it down to charge it?
 

lyner

  • Guest
Are there any instructions with it?
 

Offline Andrew K Fletcher

  • Neilep Level Member
  • ******
  • Posts: 2331
  • KIS Keep It Simple
    • View Profile
You can run right down recharge a few times and it restores the original battery memory. Done it with lead batteries also.

http://www.bealecorner.com/trv900/battery/lithium.html
 

lyner

  • Guest
A lead acid battery will seldom survive discharge down to below half its stated capacity. I reckon we should 'have em' on trades descriptions, actually. The so-called deep cycle versions are better but don't supply the same peak current. Lead acid is great if you don't actually have to carry it around. NiFe are even more rugged but heavier still for their capacity.
 

Offline Alan McDougall

  • Neilep Level Member
  • ******
  • Posts: 1285
  • Thanked: 14 times
    • View Profile
Charge when low not dead.
 

The Naked Scientists Forum


 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums