Thread Tools
Old Aug 25, 2004, 07:44 PM
Dogzilla is offline
Find More Posts by Dogzilla
Registered User

How do i keep my batteries in shape without spending money?


Ive got a hobbico mk2 field charger. It charges 2 batterys at 2Amp max.
All my packs are over 2000mah, so i just leave it on 2A all the time.

What should i do to keep my batteries peforming well?
I thought i should discharge the batteries fully before another charge, so i hooked up a PC fan to one of my batteries over night, it only draws 0.18A so im not sure if i need to be discharging at a higher rate or not.

Please give me some tips, without suggesting i buy a better charger, i dont wanna spend any more money on this hobby right now, maby in a few months
Sign up now
to remove ads between posts
Old Aug 25, 2004, 07:58 PM
hall woo is offline
Find More Posts by hall woo
Permanently Banned
Try to keep your batteries cool and not overload them. U will need a AFI whatmeter to check the right prop load and not over discharge and overheat your batteries.
Old Aug 25, 2004, 08:09 PM
Andy W is offline
Find More Posts by Andy W
Registered User
Andy W's Avatar
What makes you think you need to discharge your batteries?
..a
Old Aug 25, 2004, 08:36 PM
SharksTooth is offline
Find More Posts by SharksTooth
Aerobatic Extremist
SharksTooth's Avatar
Andy is right. The only reason to discharge any battery is to check capacity. Discharging them and then charging them only adds another cycle to the batteries, and over time this 'cumulative cycling' will only reduce life. Was there a reason you discharged your packs?
Old Aug 26, 2004, 05:31 AM
Dogzilla is offline
Find More Posts by Dogzilla
Registered User
What about battery memory? Should i just fly them in my plane as usual until they are run out and then charge them again? There is always some juice still left in there. And sometimes i might only use half a battery, and i dont like taking off on half a battery
Old Aug 26, 2004, 06:52 AM
Andy W is offline
Find More Posts by Andy W
Registered User
Andy W's Avatar
In our applications (and virtually any other, for that matter), there is no such thing as "memory" in batteries. You just recharge when necessary, regardless of current charge state. Of course, you can't use a timer to determine how long to charge, you need a proper peak detection charger (for NiCd/NiMH)..
..a
Old Aug 27, 2004, 02:22 AM
adamkerrnz is offline
Find More Posts by adamkerrnz
I <3 Windy Days
adamkerrnz's Avatar
ok, from my experience with electric r/c cars.
it is benificial to dicharge NiCd's before you recharge them, this is because they have a memory effect and if you dont you will get less capacity over time.
NiMh's dont need discharging because they do not have that memory effect. but it is still good to discharge them. discharging WILL prolong the life of your batteries.
i charge 1400 NiCd's at 4amps and they perform fine, i dont see why you couldnt charge at higher amperes. i charge my 6cell GP3300's at 5 amps. mostly because of the time between races
Old Aug 27, 2004, 02:25 AM
adamkerrnz is offline
Find More Posts by adamkerrnz
I <3 Windy Days
adamkerrnz's Avatar
and there IS such thing as a memory effect, but only in NiCd's
Old Aug 27, 2004, 03:40 AM
wacko is offline
Find More Posts by wacko
Registered User
Quote:
Originally Posted by adamkerrnz
and there IS such thing as a memory effect, but only in NiCd's
http://www.repairfaq.org/ELE/F_NiCd_Memory.html

interesting read
Old Aug 27, 2004, 07:57 AM
Andy W is offline
Find More Posts by Andy W
Registered User
Andy W's Avatar
Quote:
Originally Posted by adamkerrnz
and there IS such thing as a memory effect, but only in NiCd's
Quote:
Originally Posted by Andy W
In our applications (and virtually any other, for that matter), there is no such thing as "memory" in batteries.
..a
Old Aug 27, 2004, 08:26 AM
Dogzilla is offline
Find More Posts by Dogzilla
Registered User
Ok thats cleared that up then. Thats good


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question How do i modify my 4 in 1 receiver? omloro DIY Electronics 3 Jan 22, 2007 02:09 PM
Discussion how do keep the motor cool in the cox warbirds? Draven Electric Plane Talk 3 Sep 06, 2006 08:31 PM
How do I keep my exhaust deflector from coming off? tridim Engines 7 Aug 21, 2005 06:15 PM
How do you secure batteries in a profile style plane? EABiker 3D Flying 5 Jun 16, 2004 01:17 PM
Question How do I bring my batteries back to life? mr_ken Batteries and Chargers 2 Dec 28, 2003 11:28 AM