Battery Mod Info

damoncooper · May 8, 2016

Quick life hack:

To get the Thunder Power LiHV charger to charge a non-Thunder Power LiHV (like the Multistar LiHV's) to 4.35V, connect a TP LiHV balance lead to the 7S balance port while your non-TP LiHV is connected to the 6S balance port to start charging and get by the TP chargers' "wrong battery type" error check.

You can (and should) disconnect the TP LiHV as soon as charging / discharging / storage begins so as not to skew the cell voltage readings.

Necessary since the TP LiHV charger requires the extra balance pin on the TP LiHV batteries to start charging LiHV. It's a safety feature I guess. The 7th pin connects to an internal battery resistor.

Fanti · May 8, 2016

damoncooper said:
29:20 to 10% with 450mah remaining in the battery (as expected). Not bad, but not earthshaking either. Mounted as below with no VPS issues.

I did like the VPS stability with this mounting solution.

Much better than the 3D printed mounting plates I've been using when batteries are mounted underneath the plates.

What is the mounting solution ?

damoncooper · May 8, 2016

Fanti said:
What is the mounting solution ?

Nothin but good ol 3M Dual Lock baby.

The duct tape of the done world

emtea · May 9, 2016

Is there a general consensus on the best weight-to-flight-time ratio auxiliary batteries?

Spartan · May 9, 2016

Quick question. Can anyone confirm that the location I have the arrows are correct for attaching two XT60 connectors for parallel setup?

Phatzo · May 10, 2016

i lost my short flight time virginity

lol
i have some 6s from my custom build octo and put it on (no props) and fired her up then put on the pack

8000mha but only on the table. nano turnigy.

after a bit of thinking time it showed me the magic 25 min

so now i can confirm that my mod is working as i have tested it

now i just need to get myself those LiHV from somewhere

Ralph??
need to place order... (rocking back and forth whispering the same sentence over and over...) lol

damoncooper · May 10, 2016

Spartan said:
Quick question. Can anyone confirm that the location I have the arrows are correct for attaching two XT60 connectors for parallel setup?

Yes exactly

damoncooper · May 10, 2016

emtea said:
Is there a general consensus on the best weight-to-flight-time ratio auxiliary batteries?

2 X Thunder Power 25C 2700's or
1 X Multistar LiHV 5200

get about 30 min to 10% on an I1 w/X3. Someone above tried a Multistar 6600 LiHV and got 33 min I believe but I haven't tried that personally.

Phatzo · May 10, 2016

what is flght time when going to 30%?

Sent from my iPhone using Tapatalk

damoncooper · May 10, 2016

Phatzo said:
what is flght time when going to 30%?

Sent from my iPhone using Tapatalk

Less?

. Don't recall exactly, sorry.

Spartan · May 10, 2016

damoncooper said:
Yes exactly

Thank you.

John Boylan · May 10, 2016

Phatzo said:
what is flght time when going to 30%?

Sent from my iPhone using Tapatalk

On several times I have ran the batteries to 30% with TB48 and 2 TP 2700's and X5 I get 20:30 to 21:00.

Phatzo · May 10, 2016

John Boylan said:
On several times I have ran the batteries to 30% with TB48 and 2 TP 2700's and X5 I get 20:30 to 21:00.

aha. hmm... i fly over water and will fly over a crowed end of june... its a festival.
i am not reckless and do plan and discuss with the organisator what i can and can not do. i will use the I1 as it is the best choice at the moment although i feel sad about not having a x5r for better pic.

doing down to 10% is a bit risky feeling for me as i have been used to the 30.
i will have to make excessive tests for me to find my sweet spot and where i feel safe to fly and do my work good.

thanks for the info.

John Boylan · May 10, 2016

Phatzo said:
aha. hmm... i fly over water and will fly over a crowed end of june... its a festival.
i am not reckless and do plan and discuss with the organisator what i can and can not do. i will use the I1 as it is the best choice at the moment although i feel sad about not having a x5r for better pic.

doing down to 10% is a bit risky feeling for me as i have been used to the 30.
i will have to make excessive tests for me to find my sweet spot and where i feel safe to fly and do my work good.

thanks for the info.

I agree with you, when I was in Maui in February I did not have the battery mod and was flying over the ocean a lot but it scared me so I only flew my TB48's down to 25-30% nothing lower and I only got about 12 minutes.

With the battery mod I would be comfortable to take them down to 20% now as there is battery redundancy now so not as much of a worry.

When I first did the mod however I liked to see how the batteries reacted in regards to the percentage level dropping at a nice steady rate to 10%. So I would be prepared and know how the setup is going to react. Basically do a test to see how realistic and correct the last 20% on the gauge is.

Also I forgot to tell you the video you made was good!

damoncooper · May 10, 2016

John Boylan said:
I agree with you, when I was in Maui in February I did not have the battery mod and was flying over the ocean a lot but it scared me so I only flew my TB48's down to 25-30% nothing lower and I only got about 12 minutes.

With the battery mod I would be comfortable to take them down to 20% now as there is battery redundancy now so not as much of a worry.

When I first did the mod however I liked to see how the batteries reacted in regards to the percentage level dropping at a nice steady rate to 10%. So I would be prepared and know how the setup is going to react. Basically do a test to see how realistic and correct the last 20% on the gauge is.

Also I forgot to tell you the video you made was good!

Yeah for clarity, when battery testing I am going to 10% but in real life especially with me carrying my X5R on my Pro 1.5 miles out at sea, I'm back over land by 35% or more

Recreational flying with my I1 tester, though, I hope to possibly push a few barriers

tcchow · May 11, 2016

I still flying with my Nano Tech 6s
2x1550mah with X3 16mins Landing 30%
With X5 12mins Landing 30%
2x 2200mah with X3 22mins Landing 30%
With X5 18mins Landing 30%
I am waiting for my Orion Touch Dou firmware upgrade to support LIHV than I will move on.

emtea · May 11, 2016

tcchow said:
I still flying with my Nano Tech 6s
2x1550mah with X3 16mins Landing 30%
With X5 12mins Landing 30%
2x 2200mah with X3 22mins Landing 30%
With X5 18mins Landing 30%
I am waiting for my Orion Touch Dou firmware upgrade to support LIHV than I will move on.

What is that added frame on the arms of your bird? Is that where you attach your lipo packs?

emtea · May 11, 2016

damoncooper said:
2 X Thunder Power 25C 2700's or
1 X Multistar LiHV 5200

get about 30 min to 10% on an I1 w/X3. Someone above tried a Multistar 6600 LiHV and got 33 min I believe but I haven't tried that personally.

Thanks Damon. Do you sell the Multistars? I'm having some issues finding stock.

Do you know of a small and light LiHV charger? I'd like to pack it with me when travelling with my inspire.

Extreme · May 11, 2016

tcchow said:
I still flying with my Nano Tech 6s
2x1550mah with X3 16mins Landing 30%
With X5 12mins Landing 30%
2x 2200mah with X3 22mins Landing 30%
With X5 18mins Landing 30%
I am waiting for my Orion Touch Dou firmware upgrade to support LIHV than I will move on.

What is your main batt you are using ?

damoncooper · May 11, 2016

emtea said:
Thanks Damon. Do you sell the Multistars? I'm having some issues finding stock.

Do you know of a small and light LiHV charger? I'd like to pack it with me when travelling with my inspire.

I'm just a user, sorry. Hobbyking makes a LiHV capable charger that's compact, but power supply is extra and external.