Convert to 2.4ghz

[Mike Stevens]

OK - so recently converted my Optic 6 to 2.4ghz and a couple of questions. Most of my fleet is electric power so no issues but I have a Wot 4 and Acrowot that i built with 35mhz and have now converted the Wot4 to 2.4. My question having read bits on here, -  is a normal 4 cell nimh pack (4.8v) sufficient to power the Rx without dropping out suddenly or do i need to go Lipo route now for Rx supply - similarly have read the the Hitec Spectra module is quite current thirsty so again do I need to convert Tx to Lipo and is there a pack that conveniently fits into the old eight cell space.

Many thanks

Mike

Edited By Mike Stevens on 27/08/2017 09:39:36

[ted hughes]

With regard to Tx question, my Futaba 2.4 Tx came with a standard NIMh battery, so I can use my old charger, and it holds power the same as my old Challenger.

Edited By ted hughes on 27/08/2017 09:54:19

[Peter Miller]

I use 4 cell 4,8 volt. Eneloops. Some of my models have 800 Mah batteries.

Don't forget that we used to fly all afternoon on 500 Mah batteries and the servos were not as efficient in those days.

[Mike Stevens]

Thanks Ted - I need to buy a new TX pack so just considering the options along with finding out more about this 2.4 malarky. Electric models give a bit of warning when power drops off but would hate to have a Rx failure on an I/c model due to lack of volts........

[Keith Berriman]

Mike I had the optic 6 before upgrading to the 7 on nicads in tx and Rx.  I had enoloope all round no problems.

It's when you go digital servo s that you have to keep on eye on Rx batteries

Edited By RC Plane Flyer on 27/08/2017 10:16:23

[Mike Stevens]

OK - many thanks all.

[Frank Skilbeck]

Part of the issue with some AA high capacity Nimh cells is that they have a high internal resistance, so while they will quite happily provide a low current for a long time, they can suffer a voltage dip if under a large load, for most models this isn't an issue, but using a 4 cell AA pack with digital servos on large control surfaces on say a 3D aerobatic model may be a problem.

As regards the Tx, 2.4 uses less power than 35 mhz so existing batteries should last longer.