RE: Multiplex LN-5014 Charger Ships & Review  
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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> RE: Multiplex LN-5014 Charger Ships & Review
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RE: Multiplex LN-5014 Charger Ships & Review - 3/21/2006 5:22:13 AM   
ernest2



Posts: 510
Joined: 2/25/2004
From: antipolo, PHILIPPINES
Status: offline 		thanks anchorman!
can you set the voltage for the discharge in a cycle mode?

(in reply to jkkrobbins)
       Post #: 101

RE: Multiplex LN-5014 Charger Ships & Review - 3/21/2006 5:55:14 AM   
ernest2



Posts: 510
Joined: 2/25/2004
From: antipolo, PHILIPPINES
Status: offline
quote:

ORIGINAL: jkkrobbins

So what will happen if the input cables are reversed? I know if the outputs to the battery are reversed you get an error. But what about the power input? Does it detect this or will it fry?


i don't know if its the same with this charger, but in the manual for rip-max pro peak prodigy (which is the same with my swallow digital charger), its says in the features that reverse polarity protection on both input and output. maybe you can check with the manual.

(in reply to jkkrobbins)
       Post #: 102

RE: Multiplex LN-5014 Charger Ships & Review - 3/25/2006 9:04:24 AM   
StevieM


 

Posts: 16
Joined: 12/23/2002
From: surrey, UNITED KINGDOM
Status: offline 		From Bcer-Rcer query back in Nov, with regards to the "cycle" mode:-
-
"But when in either cycle mode (Discharge to Charge; or Charge to Discharge), it appears to ignore my set cutoff voltage and drop the pack to below 0.8V per cell before stopping the discharge"
-
Mine does the same...ie, despite set cut-off voltage for 9.6v pack as 8v, in cycle mode it will discharge to 6.4v, before charge cycle.
-
Tested this with one cell also.....discharges to 0.8v, regardless of actual cut-off voltage set.
-
Wonder what happens if set to 1.25v per cell (maybe it then discharges to 1v per cell???)...anyone tried this ???
-
So, imagine if use this charger for 14-cell pack in cycle mode, could be high risk of reversing a cell if set cut-off to 14v?
-
Anyone else found this "feature"?

-
Rgds, Steve


(in reply to hilleyja)
       Post #: 103

RE: Multiplex LN-5014 Charger Ships & Review - 3/25/2006 2:06:31 PM   
RC Accessory



Posts: 606
Joined: 12/7/2001
From: Tampa, FL, USA
Status: offline
quote:

ORIGINAL: StevieM

From Bcer-Rcer query back in Nov, with regards to the "cycle" mode:-
-
"But when in either cycle mode (Discharge to Charge; or Charge to Discharge), it appears to ignore my set cutoff voltage and drop the pack to below 0.8V per cell before stopping the discharge"
-
Mine does the same...ie, despite set cut-off voltage for 9.6v pack as 8v, in cycle mode it will discharge to 6.4v, before charge cycle.
-
Tested this with one cell also.....discharges to 0.8v, regardless of actual cut-off voltage set.
-
Wonder what happens if set to 1.25v per cell (maybe it then discharges to 1v per cell???)...anyone tried this ???
-
So, imagine if use this charger for 14-cell pack in cycle mode, could be high risk of reversing a cell if set cut-off to 14v?
-
Anyone else found this "feature"?

-
Rgds, Steve




Steve, which charger has the issue you describe above? I can't tell if you are referring to the RipMax or the Multiplex. Thanks.



(in reply to StevieM)
       Post #: 104

RE: Multiplex LN-5014 Charger Ships & Review - 3/25/2006 3:13:35 PM   
StevieM


 

Posts: 16
Joined: 12/23/2002
From: surrey, UNITED KINGDOM
Status: offline 		Ripmax...Propeak Prodigy II

Rgds, Steve

(in reply to RC Accessory)
       Post #: 105

RE: Multiplex LN-5014 Charger Ships & Review - 3/25/2006 4:16:20 PM   
RC Accessory



Posts: 606
Joined: 12/7/2001
From: Tampa, FL, USA
Status: offline 		Thanks. I have seen very little feedback on that charger. Thanks.

(in reply to StevieM)
       Post #: 106

RE: Multiplex LN-5014 Charger Ships & Review - 3/25/2006 9:23:46 PM   
StevieM


 

Posts: 16
Joined: 12/23/2002
From: surrey, UNITED KINGDOM
Status: offline 		Believe same as ln-5014.
-
Comparing spec./physical layout/intruction manual, appear identical.
-
November post I referred to related to 5014, identical discharge characteristics in cycle mode for my Ripmax.
-
Totally reliable in straight "discharge" mode though...will accurately cut discharge accdg. to c-off voltage set.
-
It's just a quirk of the charger and I will just avoid cycle mode..not a pbm.
-
rdgs, Steve

(in reply to RC Accessory)
       Post #: 107

RE: Multiplex LN-5014 Charger Ships & Review - 3/26/2006 3:03:17 PM   
mglavin



Posts: 5200
Joined: 11/29/2001
From: Elverta, CA, USA
Status: offline
quote:

ORIGINAL: StevieM

From Bcer-Rcer query back in Nov, with regards to the "cycle" mode:-
-
"But when in either cycle mode (Discharge to Charge; or Charge to Discharge), it appears to ignore my set cutoff voltage and drop the pack to below 0.8V per cell before stopping the discharge"
-
Mine does the same...ie, despite set cut-off voltage for 9.6v pack as 8v, in cycle mode it will discharge to 6.4v, before charge cycle.
-
Tested this with one cell also.....discharges to 0.8v, regardless of actual cut-off voltage set.
-
Wonder what happens if set to 1.25v per cell (maybe it then discharges to 1v per cell???)...anyone tried this ???
-
So, imagine if use this charger for 14-cell pack in cycle mode, could be high risk of reversing a cell if set cut-off to 14v?
-
Anyone else found this "feature"?

-
Rgds, Steve




The charger is working properly IMO, 0.8V is the industry standard or thereabouts (some use 0.9V) for cycling NiMH-NiCD cells. You'll find your batteries will not come close the capacity ratings @ 1.0V cut-off. You'll not hurt your batteries and the programmed parameter for discharge will exercise their design tolerances, worry not about cell reversal. Since full capacity discharge regimens are not recommended on a routine basis and it’s typically performed to garner battery pack condition it’s all good occasionally.

Discharge cut-off voltage levels are NOT to be confused with NO-FLY Voltage, whereas terminating flight @ a loaded 1.0V is more than reasonable approach.




_____________________________

Michael Glavin
RCU Community Moderator
Hitec * Multiplex Field Representative

(in reply to StevieM)
       Post #: 108

RE: Multiplex LN-5014 Charger Ships & Review - 3/29/2006 5:24:39 AM   
RCP57


 

Posts: 373
Joined: 3/3/2002
From: Magnolia, TX, USA
Status: offline 		I see quite a few people trying to charge new Ni-Cad or Ni-MH at a higher rate than a C10. This is not a good idea because you are not performing a “Forming” charge. I have used this charger many times to form new batteries with perfect success. I set up a cycle of 5 times and charge the new batteries at a C10 rate (1000 mAh / 10 = 100 mAh charge). I set the discharge rate at C5 (1000 mAh / 5 = 200 mAh discharge). The batteries never get hot and will take full capacity after this routine.

_____________________________

Later,
Mike

(in reply to mglavin)
       Post #: 109

RE: Multiplex LN-5014 Charger Ships & Review - 3/29/2006 5:35:22 AM   
ernest2



Posts: 510
Joined: 2/25/2004
From: antipolo, PHILIPPINES
Status: offline 		when charging nimh, is it ok to recharge again after a charge? like i charge my IB3800 pack 2.5amps. it peaks after putting 3500++ mah. and then i charge it again, this time at 1amp rate, and it still goes to about 800mah, before i stop it, fearing i might overcharge it, (cause i thought 3800 is the peak capacity and 3500+800 is already 4300).

(in reply to RCP57)
       Post #: 110

RE: Multiplex LN-5014 Charger Ships & Review - 3/29/2006 6:58:35 PM   
jkkrobbins


 

Posts: 52
Joined: 12/15/2005
From: houston, TX, USA
Status: offline 		I was wondering the same thing. After charging NiMH and NiCD at 1C, the batteries will take an extra 90-200 mAH at 0.1C depending on size. Am I hurting the battery? Or will the battery take more if you put it in slowly?

(in reply to ernest2)
       Post #: 111

RE: Multiplex LN-5014 Charger Ships & Review - 4/20/2006 2:25:21 PM   
Alfalfameister


 

Posts: 52
Joined: 12/25/2005
From: MuntinlupaMetro Manila, PHILIPPINES
Status: offline 		TRICKLE CHARGE question

When I charge over 1 amp (6-cell subC pack), whether NiCD or NiMH, after the charge, the Multiplex (or, in my case, the Swallow Advance) changes to a trickle charge. Is there a way of disabling the trickle charge?

(in reply to jkkrobbins)
       Post #: 112

RE: Multiplex LN-5014 Charger Ships & Review - 4/22/2006 3:21:20 PM   
RCP57


 

Posts: 373
Joined: 3/3/2002
From: Magnolia, TX, USA
Status: offline
quote:

ORIGINAL: Alfalfameister

TRICKLE CHARGE question

When I charge over 1 amp (6-cell subC pack), whether NiCD or NiMH, after the charge, the Multiplex (or, in my case, the Swallow Advance) changes to a trickle charge. Is there a way of disabling the trickle charge?

No

_____________________________

Later,
Mike

(in reply to Alfalfameister)
       Post #: 113

RE: Multiplex LN-5014 Charger Ships & Review - 5/18/2006 5:20:59 AM   
RVM


 

Posts: 1975
Joined: 3/12/2006
From: Sacramento, CA, USA
Status: offline 		What exactly would I need to do to convert a PC PSU to a unit to power the Multiplex LN 5014? I don't want to spend $80-$100 on a PSU when I have several spare PC PSUs sitting around. Thanks!

_____________________________

There is no substitution for human competition.

(in reply to hilleyja)
       Post #: 114

RE: Multiplex LN-5014 Charger Ships & Review - 5/18/2006 7:33:44 AM   
ernest2



Posts: 510
Joined: 2/25/2004
From: antipolo, PHILIPPINES
Status: offline 		very simple. if you know how to solder and cut wires.
try this link http://www.rcbatteryclinic.com/

(in reply to RVM)
       Post #: 115