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« on: February 06, 2011, 11:57:31 PM »
CrazyPilot
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Hi all

I need a usb charger for this kind of helicopter urgently. please help.

http://cgi.ebay.in/3-CH-infrared-controlled-Steel-Helicopter-Toy-USB-wire-/400190292889?pt=LH_DefaultDomain_203&hash=item5d2d334399

Thx & regds.
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« Reply #1 on: February 07, 2011, 12:07:25 AM »
KALYANPRODHAN
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Just use any USB mobile charger or make 5 voly DC Supply using LM7805 and charge series with 4.7 Ohm in series.
Please note that, do not charge it over 1C (200mA if the cell is 200mAH)
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« Reply #2 on: February 07, 2011, 12:10:52 AM »
CrazyPilot
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Sir, I am not a technical guy so i dint understand what u suggested. I cant make a charger that's why i am asking for help here. all i need is a seller who sells this type of charger. i think its a single cell battery.
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« Reply #3 on: February 07, 2011, 12:14:39 AM »
divay99
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Crazy... I have one lying around with me ... you can take it from me, when you come to the field bro ... how is lucknow treating you ... you are missed on the field ... hope to c u soon ...
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« Reply #4 on: February 07, 2011, 01:10:47 AM »
VC
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Careful! I burnt out 2 USB chargers when I connected them to the wrong Helis. Now they both recharge only from the Tx cords. Furthermore, all the USB ports on my laptop are defunct after that incident.

PLEASE use specified / matched USB charger cables only. I've learnt the very hard way.

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« Reply #5 on: February 07, 2011, 07:59:59 AM »
speedracer
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i Have a usb wall charger
5v output .
if you want it pm me your address I'll send it .
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« Reply #6 on: February 07, 2011, 08:59:03 AM »
KALYANPRODHAN
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CRazyPilot,
Don't use NOKIA Chargers, they are monsters without feedback and can get current upto 1.2A (Sureprisingly but sure). Before connecting be sure about the positive and negative terminal. The current may be limited by resistor.

VC,
Your LapTop USB Chip resistance/MOS is just blown. No matter, go to any chip level technician, they will bring life to all your USBs. Hope quick recovery for your USB. Before going to technician, please disable and again enable the USB from Device Manager. IN moderm Motherboard, the chip just become disable while overcurrent.
« Last Edit: February 07, 2011, 09:16:17 AM by KALYANPRODHAN » Logged

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