Run Times

[wiskers]

Does anyone have any run times that could be posted?
I'm planning on using 3s 25c 1300mah in an otherwise stock minicat hydro

[badag98]

I was running a similar set up and was getting about 5-7 mins out of mine with out any issues.

[wiskers]

Thanks, I can live with (already have the lipo from crawler).

[badag98]

I had a seaking 35amp esc with the lipo cut off, I never had issues with heat on motor, batteries, or esc but usually could tell the battery was getting low buy preformance.

[wiskers]

Great. How much time did you have, from when you noticed the boat slowing down, to get back to shore?

[wparsons]

What prop and motor kv are you guys running to get 5 minutes out of a 1300mah pack?

I usually get ~6 minutes on my small bolt, but I'm putting about 1500mah back into a 2200mah pack. I'm running the stock 2700kv motor, and a metal x632 prop (S&B).

Not sure how much lipo experience you have, but try to make sure you're not draining it more than 80% (ie not using more than 1040mah on a 1300mah pack), even if the voltage is still high. Some high C packs (or lower amp draw boats) will totally drain a pack without hitting the LVC.

[wiskers]

I have no lipo experience. Got the lipo for my crawler and never used it. It's still in the box it came in a year ago. Picked up the Micro Hydro yesterday from the local hobby shop. this what should be there. The motor is red, no other markings.
Specifications
Length Overall: 380mm)
Beam: 200mm
Hull - Hand laid fiberglass hull and hatch.
Power - Water cooled, 20mm x 40mm, 2 pole, 2600KV 64g
ESC - Water cooled 30a continuous, 40A (10 seconds), 6-12 NiMh, 2-3 Lipo, 2A-6V BEC, programmable, 27g
Servo - High Performance
Our famous CNC machined hardware.
Drive System - Flex shaft, 4mm prop shaft, drive dog
Propeller - Plastic 30mm x 36mm, 4 different diameters available
REQUIRED: 3S 11.1V Lipo Battery and 2 Ch Radio

[wparsons]

For the first couple runs I would suggest making them shorter (2-3 minutes) and see how much current you're putting back into the pack, and up the run time from there.

If you want longer run time, 3s 2200mah packs are like $9 from hobbyking.

[wiskers]

Thanks for the info. I've never seen prices like that. Our local hobby shop wants $30.00+. I'll have to ask them to check into Turnigy.

[SweetAccord]

It's hard to beat Hobby King, but also HobbyPartz is another one to consider. The Blue Lipo's are excellent performers for the price. Turnigy, Rhino, Zippy are good also. I have only had one Zippy fail on arrival but for the price I can order two to three more and still be ahead on the cost.

[wparsons]

If you're in the US, hobbypartz.com has REALLY good shipping. It's not so great to Canada though.

[SweetAccord]

What prop and motor kv are you guys running to get 5 minutes out of a 1300mah pack?

I usually get ~6 minutes on my small bolt, but I'm putting about 1500mah back into a 2200mah pack. I'm running the stock 2700kv motor, and a metal x632 prop (S&B).

Not sure how much lipo experience you have, but try to make sure you're not draining it more than 80% (ie not using more than 1040mah on a 1300mah pack), even if the voltage is still high. Some high C packs (or lower amp draw boats) will totally drain a pack without hitting the LVC.

Your stock motor is a 2700kv? Interesting, have not seen that yet. Normally it's the 2604kv one I've seen. Where did you get yours?

[wparsons]

Mine's 2600kv, 2700 must've been a typo.

[martin]

How do you tell how much you have taken out of the lipo, Does it show on the charger when you charge again. What should i be looking for to see how much has been taken out or needs putting back in on say a 2200mah 3s lipo Thanks.

[wparsons]

My charger shows me the mah put back in real time, and keeps the total displayed when the pack is done until I turn it off or start another pack.

You can roughly guesstimate it based on charging current and time, but the last 2% or so charges at a much lower rate and adds additional time.