Thread Tools
Aug 19, 2020, 03:45 AM
Registered User
Thread OP

30C or 50C batteries for a 60A ESC in an Eflite Carbon Cub Z SS 2.1m

I have a new Eflite Carbon Cub Z SS 2.1m BNF which comes with a 60A ESC. I want to know if it would be better to purchase a 30C batery or a 50C battery. What would be the differences / limitations?
Sign up now
to remove ads between posts
Aug 19, 2020, 08:58 AM
Registered User
Tzicul's Avatar
Considering the size of your airplane, I suppose you will need at least 4-5.000 mAh battery. At this size, 30C should be enough (you will have between 120 and 150A - in theory). However, bigger is better, right?

Sent from my H8216 using Tapatalk
Aug 19, 2020, 09:22 AM
Registered User
You may also need to consider weight, in particular with reference to CoG, and size.
Also, it may or may not be important to you, but I believe a higher C rate might also mean you can charge at a higher rate, thus charge quicker. Check out before purchasing.
Aug 19, 2020, 06:51 PM
Perpetual Noob
BoxCar31's Avatar
A C rating is a multiplier of the battery capacity meaning it can provide the C rating times the capacity in short bursts. So, a 30C 5000ma battery can supply 150 Amps of current to the ESC in short bursts. You need to keep in mind that almost all C ratings are pie-in-the-sky theoretical values and the actual amount of burst current is always less than what the label implies. Battery life is partially a factor on how much current is pulled from the battery over time so lower demands usually equates to longer life. Pulling 60 Amps from a 5000ma battery is only a 12C demand.
Aug 22, 2020, 02:47 PM
Suspended Account
C rating is marketing for most battery companies.
Aug 22, 2020, 02:54 PM
Fly 'm if you got 'm
MrEFlyer's Avatar
Go with the recommendations you got in the other thread with your same question.

Quick Reply

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
New Product The NEW E-flite Carbon-Z Cub SS 2.1m ...Better Than Ever Giant-Scale Experience! Jason M Electric Plane Talk 1722 Jul 25, 2021 02:27 PM
Help! Lighting for eflite 2.1 Carbon Cub ss dmohring Electric Plane Talk 1 Jul 02, 2020 10:08 PM
Help! Disregard...11x7 Carbon Z Cub SS 2.1m Props Masterguns Power Systems 1 May 26, 2020 12:02 PM