Battery Mod Info

[damoncooper]

With the observation of myself and others that the DJI and Multistar (low C) batteries have significantly higher remaining power left in them than the main DJI battery, and higher than the aux higher-C batteries (i.e. the 25, 45+ C Nanotech's) I wonder if there is any conclusion that can be drawn?

I know we were all trying lower C batteries due to the Inspire 8-10C draw and favorable power/weight ratios of these batteries on paper, but given so much power is being left on the table, and documented flight times have been a disappointment in general vs our expectations...

I wonder if the smaller, higher C batteries are the best bet.

Since I got my best times so far with a TB48 and 2 x 2200 6S high-C Nano-Techs, I am hopeful that just nudging the power up slightly to 2650mah with the same high C and manufacturer will yield better results.

 

[Adelberg aerial imaging]

Any ideas to mount a single 5200 multistar on i1p?
I'm thinking must be centerline either above or below the on board battery?

 

[damoncooper]

Any ideas to mount a single 5200 multistar on i1p?
I'm thinking must be centerline either above or below the on board battery?

Try something like this:

 

[Adelberg aerial imaging]

I've built many cluster packs with sub c for quantum batteries and they are easy to build. They are 1.3 v each so the pack would be almost double the size to get to 22.2?v . Smaller units won't have the ah we need

 

[Adelberg aerial imaging]

Can you shoot me a bottom shot with batt attached? Thanks. I'm guessing about 26 min which is 10 more then now

 

[damoncooper]

Can you shoot me a bottom shot with batt attached? Thanks. I'm guessing about 26 min which is 10 more then now

Pics above and this one are all I took of this particular setup. I basically used zip ties to mount a plastic bracket that then attached a sheet of Velcro to. Did the same for the battery.

This would be a challenge with an X5 plate I think. Fyi.

Hope that helps. Be sure to post back your results!

 

[Adelberg aerial imaging]

I'll figure it out to test . However I think the 2 2600 mounted on the side rails will equal the power output and provide a better way to adjust CG by moving along the rails. Wonder how it effects the landing gear strings ?

 

[Adelberg aerial imaging]

Image

• Adelberg aerial imaging
• Dec 16, 2015

I1p

 

[Adelberg aerial imaging]

Im thinking of drilling two holes in bottom of batt tray and mounting a bracket there? Another 570 g toward the rear of craft will effect cG ! Don't know if gyros can compensate?

 

[Adelberg aerial imaging]

643 g not 570. Seems about same c factor as t48? Power to weight. But I'm concerned with adding this weight to aft cG . There appears to be a weight plate at the back of battery compartment that I could remove .

 

[damoncooper]

Im thinking of drilling two holes in bottom of batt tray and mounting a bracket there? Another 570 g toward the rear of craft will effect cG ! Don't know if gyros can compensate?

Gyros will compensate fine but it'll feel very sluggish and control won't be crisp. You'll also potentially burn more power than centered CG, thereby lowering flight time a bit.

But test it out and let us know.

I can tell you that friend with an X5 with 2 X 1300mah 6S, attached to the main battery wall gets 17+ min to 30%, which is much better than stock at least.

 

[Adelberg aerial imaging]

I'm getting 15-17 with t48 now. I'd like to get to 25-27 min. I think will get there with 2 2600 multi stars and the mounting won't be an issue like a single 5200. Did you wire both 2200's to the main battery ? Got to find room to add another set of wires if I go to twin 2600's. Right now I gave one red coming out one side and one black out the other for one 5200.

 

[damoncooper]

I'm getting 15-17 with t48 now. I'd like to get to 25-27 min. I think will get there with 2 2600 multi stars and the mounting won't be an issue like a single 5200. Did you wire both 2200's to the main battery ? Got to find room to add another set of wires if I go to twin 2600's. Right now I gave one red coming out one side and one black out the other for one 5200.

I am hopeful that the 2600 range might be a sweet spot for flight time but will find out soon enough

Yes you need to wire 6S batteries in parallel with the main battery.

A red and black lead from each side is what I have

 

[Adelberg aerial imaging]

I will try my 5200 but I think mounting may be an issue so I will wait to buy the 2600s until you flown them. Are they multi stars ?

 

[Adelberg aerial imaging]

Car Airplane Battery 22.2V 2800Mah 35C T Plug Lion Power Lipo Battery for Align TREX 500 RC Helicopter weighs 370 g!

On eBay weighs less then 2600!

 

[damoncooper]

I will try my 5200 but I think mounting may be an issue so I will wait to buy the 2600s until you flown them. Are they multi stars ?

Cool. I'll be sure to post ASAP when I've tested them. Still inbound from HobbyKing. Nanotech's.

 

[damoncooper]

Car Airplane Battery 22.2V 2800Mah 35C T Plug Lion Power Lipo Battery for Align TREX 500 RC Helicopter weighs 370 g!

On eBay weighs less then 2600!

Sounds promising. Give em a go!

 

[Mark Boarman]

just try it today to carry 4 x 6S lipo batterties with my i1.
it is a windy day. the weight of the lipo are 1.24kg, plus the i1 it self it is around 4.4kg.
It can fly up but very unstable, when it goes up to the height of 1.5m it seems still fine with that weight but once it tranfer to the flying mode, uoooo..... very very unstable and extreamly hard to control ( winds are coming in all different direction ), I landed immediatly and given up and to carry 2 instead of four ( they are nano tech 6S 2200mah 45-90 C and weight around 720g ). than everything back to usual.
Damon, I think the best extra weight are the 1550mah or even 1800mah. ( not talking about the flying time but for the best flying style in shape of our inspire. To figurewise the weight I think in between 500g to 700g anything more than that it won't flying in a good shape ). I will swap the 1550mah to the underneth the arm tomorrow to see will it make much different.

To whom is watching this , I am just sharing, nothong else. Thank you.

tcchow - I'm very impressed by your lipo brackets you fabricated for this mod. Are you in the US? Would you be interested in manufacturing/selling any additional brackets for those of us with limited skills and resources? lol

 

[bluethundr]

Guys..do the MAH of the two battery have to match either the 47 or the 48 you use? What happens if you bump up the MAH by chance?

 

[Phatzo]

Car Airplane Battery 22.2V 2800Mah 35C T Plug Lion Power Lipo Battery for Align TREX 500 RC Helicopter weighs 370 g!

On eBay weighs less then 2600!

mind to share a link? sorry if i missed it.



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