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HomeAircraftHelicopterMain Discussion › Opinions on my setup - LIFE battery
06-05-2014 09:23 AM  4 years agoPost 1
waqr

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Sweden

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Hi!

I am currently fitting my Trex 600N with a regulator free setup and need your help how I do this best. My plan is to use Y-harness like this one:

http://www.kullagergrossisten.se/pr...781fa62ef57f3e5

I will then put one of the leads into the RX and in the other two ends I will solder on an EC3 to connect the LIFE battery and in the other connection I will attached the Optipower Optiguard that I will use as a backup. Is this a good solution or can I do it in any other way?

Thanks!

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06-05-2014 12:06 PM  4 years agoPost 2
jackp332

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Claremont, Nh USA

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Warq, I did have a very similar setup in my Raptor gassers before, with a step down for my gyro/tail servo. After I had two HITEC 7955tg's fail, I regulated all my birds down to 5.4v. If your running HV rated servos and heat isn't an issue (my gassers get very hot and the servo that was directly above the engine heat was the position that failed each time) then I don't see why you'd have a problem.
Edit** I have 3 Raptor NITRO birds which all run 6.6life unregulated
and I've never had an issue.

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06-05-2014 02:23 PM  4 years agoPost 3
Rudy

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Houston TX/Bend OR

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I use a JR switch (JRP04507), the input is a dean connector, and it has two servo leads as a output.

Here is a link to ithttp://www.horizonhobby.com/product...a-plug-JRP04507

What servo's, gyro and rx are you using?

Most everything that's newer should work just fine on 6 volts but some older stuff may have problems

Rudy Ackerman Houston TX/Bend OR

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06-05-2014 02:35 PM  4 years agoPost 4
Rudy

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Houston TX/Bend OR

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Another option is the Safe switch 2 from Perfect Regulators.

http://www.perfectregulators.com/in...t&product_id=82

I would have ordered one but they require you to set up an account just to place a order.

Rudy Ackerman Houston TX/Bend OR

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06-05-2014 11:16 PM  4 years agoPost 5
kcordell

rrElite Veteran

O Fallon, MO

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Nice thing about LiFe packs are that you get a constant 6.6volts all the way to the end.
Bad thing is you need to monitor flight times, charge and see how much you use so you get a good idea of when to recharge.
You cannot check LiFe packs and get any feeling for capactity like we used to with LiPo's and nicads. When they drop, they DROP.

Team Futaba, Team Synergy/Rail, Team Scorpion, Team Castle Creations, YS Engines, VelTye

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06-06-2014 01:07 PM  4 years agoPost 6
Richardmid1

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Leeds, England

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You need 2 heavy duty servo extension leads, cut the female plugs off and solder both into an EC2 or 3 (both reds to the +, both blacks to the -), remove the white wire as its not needed. YOU WANT BOTH PLUGS GOING INTO YOUR RX/FBL UNIT!! Now arrange the wire, Life pack and EC3 so it can be connected and disconnected with the canopy still on.
Bad thing is you need to monitor flight times, charge and see how much you use so you get a good idea of when to recharge.
You cannot check LiFe packs and get any feeling for capactity like we used to with LiPo's and nicads. When they drop, they DROP.
One of these will check Li-fe packs state of charge and % remaining: http://www.fast-lad.co.uk/store/pro...oducts_id=17791

I have done a test under load with one of these plugged into the pack and the dreaded 'drop off' doesn't occur till under 5v and under 5% remaining! Infact my servos kept working under load till the voltage checker read 0% and upon recharge (battery still works fine btw) I put full capacity back in (2100mah into a 2100mah pack!), I am now no longer scared of Li-fe packs and I will happily go for another fly with only 25% remaining.

60% of the time, it works every time!

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06-06-2014 07:21 PM  4 years agoPost 7
Four Stroker

rrElite Veteran

Atlanta

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The Futaba HD and JR Deluxe switches are fine if you rewire them. Run 18-AWG and a big connector, Deans or similar, to the battery and two 20-AWG plugs to the receiver. The failsafe switch looks interesting.

Contrary to some opinions, an A123 pack will fit a 600N just fine sideways on the bottom.

As Kevin said, the standard way to use LiFe is to count your flights and recharge. A123 can easily be field charged at 2.5 Amps - 1C. It takes less time to charge than fly normally. After 4 12-minute flights I put 1000~1200 mAh back in the pack. You need to know how much each flight takes out.

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