Hi guys, I am going to put my bike in storage for a period of about 3 months as i am moving far away for company work.there is no one to ride the bike at home. so after 3 months, probably the battery will be dead due to self discharge and it will deteriorate much faster.is there is any external DC charger available that can be connected to wall socket and charge the battery? preferably a slow charger that will not overheat battery while charging.battery is 3Ahr maintenance free sealed lead acid type.our Airtel DTH television set top box has a adapter having 12 volt DC output same as battery voltage of 12v,is this compatible?Also how do these service center people charge the battery's any idea?may be Pinaki has some idea on this.Thanks
Last edited by sachin1111; 06-30-2011 at 03:26 PM.
^^^ Bro just disconnect the wires from battery terminals.
There is a separate charger for charging battery.
yaa but where to find suitable charger in market?is there any brand that makes such chargers?
Last edited by Pinaki; 07-24-2011 at 03:42 PM.
thanks pinaki for this brilliant idea.never came this idea in my mind of making a safe charger out of UPS.I was worried of the battery getting overcharged,but now as you said it will be on trickle charge,gives me peace of mind.I already have a UPS in my house of my old PC, eating dust due to its dead inbuilt battery.
so now i need to replace the UPS battery +ve & -ve terminals to Bikes battery +ve & -ve without changing the polarity right?i opened the UPS today,the UPS battery has two terminals one has black wire & second one has red wire.so as per these color codes of wire which one is positive and negative terminal?
Last edited by sachin1111; 09-10-2011 at 12:56 PM.
Yes right sachin'jee . We all have old discarded UPSs by now ... it's the only charging device that is designed to be left unattended & powered on indefinitely that I could think of in consumer products .. so the idea . Safety first when dealing with AC 220v and specially if you are going away while it's kept powered on . Overload protection and a fuse is build-in to every UPS , should you spill your tea on it too or you have pets at home like I do .
For your safety and clarity I am attaching these few pics I clicked just now of the setup . I've used this to charge or maintain upto 12 Ah rated battery , both lead-acid & SMF type . UPS maintains the trickle charging correctly monitoring the battery and ambient temps as it was originally designed to do for indefinite periods ... as far as I could tell with my cheap mutlimeter . Some UPS's need to be turned on to start charging , this APC one does that just with the mains power on , not needed to be turned on even ... safer .. since then the UPS output plug-sockets(220v AC) are not even powered on ... something we don't even need here .
I also use this system to Discharge batteries safely . All you need is to turn the UPS on and put a 25-100 watts household light bulb on one of the UPS output power sockets , and then ... turn the mains power off ..... UPS will discharge the battery in a controlled manner .. to it's safe maximum discharge depth . A new battery needs to charge-discharge cycled at least 10 times to arrive at it's full capacity and last long . This is Automatic enough for me .
This is the behind of my old APC ups with the battery compartment cover removed . You may have to open up the case of your old ups to access the battery contacts . You'll be safe to remove the mains power first and the old battery then .
Connect longer wires , good thick copper ones too by snipping off and soldering . Take care to firmly secure the joint from exposure - with heat-shrink tubing or good quality electrical tape .
Add end connectors of the type you need -- here I am using the original type from the UPS ( for UPS batteries ) and plug-in m/f bike battery terminals ( snipped off from an old bike battery , colour code is got reversed here , but as long as you remember the original output +/- , it hardly matters thereafter ) . BLACK wire from UPS goes to battery -ve(negative) , RED wire from UPS goes to battery +ve(positive) . Again , tape or heatshrink the joint properly .
Just remember - RED is always for power .
That's all folks , did my Splendor+ carb last weekend , DIY coming up as soon as I find some time to write it out . cheers .
Last edited by Pinaki; 09-13-2011 at 12:26 AM.
I don't quite understand why hero 100cc bikes,which ranges from 38k-55k have so much price difference as the engine is same in all their 100cc products starting from cd dawn,cd deluxe,splendor plus,pro to passion pro..Do the change in looks cost so much?I'm very curious to know about it
Apache RTR 180 2011 | Honda Activa 2010 | CBZ Xtreme 2010 (1 month) |Apache 160 FI 2009-2010
Bajaj Kristal 2007-2011
It's something to do with market segment targeting , as taught in management classes , read up what Dilip Bam writes about it , it was somewhere on the net , he is an avid biker as well as a management prof .