Building my first quad and looking for a battery, probably Bonka as I can get them locally for a good price.

Will not be racing anytime soon, still crashing a lot, probably flying the most at 75-80%?  Just zipping around my own course in my backyard, doing some barrel rolls and flips.

From the specs/tests that I found, the max at 100% is around 20A with the 5040.

Can I get away with a 45C or 65C is needed?

Do I go with 3S or 4S?  I know 4S is more preferred.

Looks like the only difference between 1300 and 1500 is approx one minute of flight time.


My setup:

ZMR250
DYS XS20A ESC
Emax RS2005 2300KV
5030/5040 dual blade props
Emax F3 Acro + OSD
Matek PDB
Flysky FS-i6X with X6B receiver
5.8G 200mw with 700tvl cmos camera
Eachine VR D2 goggles


Thanks in advance.

If just for practicing, I would say 4S 1500mah is a good choice.
45C would do in your case, but if 65C is not too far off, then consider them... To be honest C rating is more of a marketing trick... they are not standardized rating.

If you want a deeper understanding on Lipo's, you may consider reading:

http://rogershobbycenter.com/lipoguide/

A 3s battery might be good for getting the hang of it but the 4s will nearly double your power (and fun factor) so that's something to consider.

I fly a ZMR250 with 2205/2300KV motors, 5x4x3 props (DAL right now) and I use an 1800mah Tattu.  I'm actually getting 6:30-7 minutes of flight time, that's with a fair amount of throttle punches and flips and rolls.  I do have some 1300mah batteries on the way, so I can see how big of a difference

The 1800mah is listed at 226 grams, the 1300mah at 158 grams.

(09-Jan-2017, 07:14 PM)illushinz Wrote: I fly a ZMR250 with 2205/2300KV motors, 5x4x3 props (DAL right now) and I use an 1800mah Tattu.  I'm actually getting 6:30-7 minutes of flight time, that's with a fair amount of throttle punches and flips and rolls.  I do have some 1300mah batteries on the way, so I can see how big of a difference

The 1800mah is listed at 226 grams, the 1300mah at 158 grams.

What is the C rating you are using?  I would like to know the difference in using the 1300mah battery too.

Thinking of going with either the 1300 or 1500mah.  20g weight difference between the two.

ZMR250 and its variants are capable of hauling up to 2200 mAh batteries because they are designed to mount the battery close to the CoG. I have pulled off 9 minutes with a further lightened setup, albeit that results in a sluggish craft. For rear-mount craft like Lumenier vehicles or racing-specialised frames, the choice is usually between 1300 mah or 1500 mah and 3S or 4S.

(10-Jan-2017, 03:46 PM)ohdino Wrote: What is the C rating you are using?  I would like to know the difference in using the 1300mah battery too.

Thinking of going with either the 1300 or 1500mah.  20g weight difference between the two.

I believe its a 75C (according to the sticker)

for learning 4s 1500 mah - get something decent like SLS or other that has been proof tested on the quality of cells.

for going crazy get few 4s 1300 mah

as for the major factor for the time in the air... it is the weight of the quad - better you build it - longer in the air you are <yoda_mode_off>
biggest i've flown on zmr250 (old version) was 3s 2200 mah - up to 11-12 minutes... but that was long time ago... now 1300 mah 4s lasts for 3 minutes...

(11-Jan-2017, 12:49 AM)Grisha0 Wrote: for learning 4s 1500 mah - get something decent like SLS or other that has been proof tested on the quality of cells.

for going crazy get few 4s 1300 mah

as for the major factor for the time in the air... it is the weight of the quad - better you build it - longer in the air you are <yoda_mode_off>
biggest i've flown on zmr250 (old version) was 3s 2200 mah - up to 11-12 minutes... but that was long time ago... now 1300 mah 4s lasts for 3 minutes...

That's great advice from Grish! I cleaned up my quad, wires, etc., balanced motors and props (to the best of my ability), and tuned it a little differently (reduced D term significantly) and added nearly 30% to my flight time.