The Association of Model Submariners.

Would you like to react to this message? Create an account in a few clicks or log in to continue.

* THE FORUM FOR ALL THOSE INTERESTED IN BUILDING AND OPERATING MODEL SUBMARINES *



Join the AMS - Registered Forum users can become members of the AMS and it's free ...... To join send an email with your name , address and phone number to amstreasure@googlemail.com


For further details of any events shown here also see the "Shows and Events" section on the forum

*HOPING FOR A BETTER 2021 AND MORE OF THESE EXCELLENT FREE EVENTS ALL AROUND THE COUNTRY!

.

CANCELLED because of coronavirus. Papplewick Pumping Station, Nottingham, Sunday 12th & Monday 13th April
CANCELLED because of coronavirus. Bournville Sub Day, Sunday 10th May 2020

. ,

(CANCELLED) Submarine, Boating & Sailing Weekend, Norwich MBC, Weekend of 25,26th July

,./
.
Model Boat Convention, Haydock Park (Cancelled this year)

.

CANCELLED. Bournville Sub Day, Sunday 13th September

,,,,

(CANCELLED) Club Submarine Regatta, Furness MBC, Barrow in Furness, Sunday 20th Sept 2020

Who is online?

In total there are 5 users online :: 0 Registered, 0 Hidden and 5 Guests

None


Most users ever online was 180 on Tue Nov 05, 2019 6:03 am

Latest topics

» openLRS on 458Mhz and 433Mhz and submarines
FTAO: David Forrest EmptyToday at 3:47 pm by tsenecal

» Video 'SURFACES" that will aid submarine modelers.
FTAO: David Forrest EmptyThu Jan 14, 2021 2:15 pm by gp100man

» Wanted. Resin static submarine kit out of production.
FTAO: David Forrest EmptyWed Jan 13, 2021 6:54 am by gp100man

» New Static Submarine kit for 2021.
FTAO: David Forrest EmptyWed Jan 13, 2021 6:39 am by gp100man

» 1:120 Spanish S-80 submarine
FTAO: David Forrest EmptyTue Jan 05, 2021 4:50 pm by JuanGg

» 1:72 U boot Scratch built
FTAO: David Forrest EmptyTue Jan 05, 2021 4:44 pm by JuanGg

» Alf's U Boat
FTAO: David Forrest EmptySat Jan 02, 2021 4:25 pm by Tom(ADMIN)

» Sonar 'ping'
FTAO: David Forrest EmptySat Dec 12, 2020 6:47 pm by Tom(ADMIN)

» Pinger 3 - Distance measurement (Triangulation, Transponders and Clocks on Board)
FTAO: David Forrest EmptyWed Dec 02, 2020 10:43 am by david f

Statistics

Our users have posted a total of 11251 messages in 1842 subjects

We have 881 registered users

The newest registered user is druiz100

    FTAO: David Forrest

    avatar
    Tom(ADMIN)
    AMS Forum Owner

    Posts : 3003
    Join date : 2010-11-05
    Age : 61
    Location : Nevada, USA

    FTAO: David Forrest Empty FTAO: David Forrest

    Post  Tom(ADMIN) on Thu Apr 25, 2013 12:00 pm

    David, you're our resident LiPo expert user, so I wonder if I could pick your brains, please?

    I've just bought a Turnigy 3 cell 11.1volt 5.000mAh 20-30c burst LiPo pack for my new project(bought from Hobby King, delivered in eight days...not bad, I thought!)

    Can you recommend me a good quality balance charger for it, please? I don't mind spending a decent amount of cash for a good one, the last thing I want is a cheapie charger that either won't last or will damage the battery pack.

    Thanks in excited anticipation...

    FTAO: David Forrest Turnig10


    Richard


    david f
    david f
    AMS Treasurer

    Posts : 2137
    Join date : 2010-11-10
    Age : 70
    Location : Cumbria

    FTAO: David Forrest Empty Re: FTAO: David Forrest

    Post  david f on Fri Apr 26, 2013 1:37 pm

    Well I use a very simple, small and quite cheap Turnigy C3 Compact Balance Charger.

    I have used this many times over the last 3 years on 2 sets of Lipos. (Obtained from China at an eBay store that Ramesh recommended.) Both still working very well after maybe up to 50 charge cycles.

    The key thing is to use a balancing charger (it connects to the little white plug on the LIPO.

    Our use is quite different to the main users (flyers) we don't need rapid charging or very rapid discharge. Under these conditions I have found Lipos to be very reliable and trouble free (better than Nicads/Nimhs in my opinion. Much smaller and easier to fit in than lead acids ,say. One 1500mAh Lipo drives my Charlie class, U class (both about 5 feet long)for about 30 minutes.

    No fires either! I take the usual precautions:

    - in-line fuse to the sub.
    - I store the Lipos in the special fireproof bags inside a tin box
    - I use a home brewed low voltage alarm to protect the battery. It hasn't been triggered yet because I am quite careful to not sail for too long.

    Go Lipo!

    David
    avatar
    Tom(ADMIN)
    AMS Forum Owner

    Posts : 3003
    Join date : 2010-11-05
    Age : 61
    Location : Nevada, USA

    FTAO: David Forrest Empty Re: FTAO: David Forrest

    Post  Tom(ADMIN) on Fri Apr 26, 2013 2:38 pm

    That's excellent, thanks David...just about to go and take a look at that charger. Point taken about the low voltage alarm, I'll check that out as well.

    Gone LiPo!!
    avatar
    Tom(ADMIN)
    AMS Forum Owner

    Posts : 3003
    Join date : 2010-11-05
    Age : 61
    Location : Nevada, USA

    FTAO: David Forrest Empty Re: FTAO: David Forrest

    Post  Tom(ADMIN) on Fri Apr 26, 2013 6:53 pm

    Is this the charger, David?

    http://www.hobbyking.com/hobbyking/store/__8247__Turnigy_2S_3S_Balance_Charger_Direct_110_240v_Input.html
    david f
    david f
    AMS Treasurer

    Posts : 2137
    Join date : 2010-11-10
    Age : 70
    Location : Cumbria

    FTAO: David Forrest Empty Re: FTAO: David Forrest

    Post  david f on Sat Apr 27, 2013 11:22 am

    That's the one!

    I bought mine from a Trader at the Haydock Park Show (Sorry I can't remember which one.)

    David
    profesorul
    profesorul
    Guest

    Posts : 386
    Join date : 2011-07-03
    Age : 56
    Location : Bucuresti, ROMANIA

    FTAO: David Forrest Empty Re: FTAO: David Forrest

    Post  profesorul on Tue Apr 30, 2013 10:09 am

    HI DAVID ,
    I have these one:

    http://www.hobbyking.com/hobbyking/store/__11668__HobbyKing_Variable_6S_50W_5A_Balancer_Charger_w_accessories.html?strSearch=variable 6s[/url]

    what do you think?.Is good?.

      Current date/time is Fri Jan 22, 2021 4:40 pm