Liion batteries

[Roy1]

What one do you recommend on Amazon for $55. I will take a pic of it, took a broken drill battery connection and hooked it up just curious.

[jkflow]

Motor voltage is only a recommendation. Mainly driven by max rpm. I run my 2200 on 6S all day.
Max rpm is typically driven by bearing rpm rating etc.
For boat applications, you typically want to be in the 25-35k rpm but I frequently ignore that as well, really depends on what you want to achieve.

[Bande1]

Motor voltage is only a recommendation. Mainly driven by max rpm. I run my 2200 on 6S all day.
Max rpm is typically driven by bearing rpm rating etc.
For boat applications, you typically want to be in the 25-35k rpm but I frequently ignore that as well, really depends on what you want to achieve.

big boats = low RPM
speed run boats = high RPM
oval racing 25k-30k RPM

why? because its where the prop size is optimized.

[Roy1]

I took a pic, was going to make a video but too much trouble. It works though used them a few times when batteries were dead.20231125_094754.jpg20231125_094801.jpg

[Bande1]

https://www.amazon.com/HOOVO-7-4V-Co...zcF9hdGY&psc=1

[Roy1]

I looked at the batteries Bande1 listed and they are LiPo bats which are 3.2 volt, I would have to get three of them to get the same voltage. I like LiPo bats they are more economical for sure, but for sheer power liion is a little better 3.7 volt. I do know that if you step up the voltage, you will decrease your amperage use. That is why electric heaters are cheaper to operate if they are 220V.

[Roy1]

By the way Bande1, I went back to Leopards website and found out my motor (1450kv) and the 1650kv are rated for 33 volts (8s). In addition some of the lower kv motors are rated for 10s. So the website I had looked at was right it is 4s-10s, it just depends on the winding, which makes sense.