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Thread: Charge Your Bike/Car Batteries At Home

  1. #11
    Rusted lockhrt999's Avatar
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    Default Re: Charge Your Bike/Car Batteries At Home

    This is what I did last summer.

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    Now this battery has become permanent part of that UPS. This UPS could run 21'' CRT tv for half an hour. Now days it power my wifi network only.

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    Default Re: Charge Your Bike/Car Batteries At Home

    Quote Originally Posted by B7ACKTHORN View Post
    Very good indeed. I have a UPS that's about to get junked, now I think I've found a simple, easy and jugaad to fix. But what about VRLA guess they work the same way?
    The default battery in the UPS is VRLA only.

  3. #13
    Moderator B7ACKTHORN's Avatar
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    Default Re: Charge Your Bike/Car Batteries At Home

    Quote Originally Posted by sandeepcf View Post
    The default battery in the UPS is VRLA only.
    That's great. The UPS is V Guard, and haven't removed the battery as of yet, but will surely keep posted if in need of any assistance. Great work.

    Cheers!
    VJ
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    Rusted lockhrt999's Avatar
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    Default Re: Charge Your Bike/Car Batteries At Home

    Quote Originally Posted by B7ACKTHORN View Post
    That's great. The UPS is V Guard, and haven't removed the battery as of yet, but will surely keep posted if in need of any assistance. Great work.

    Cheers!
    VJ
    Just keep in mind that some UPS are very picky when it comes to batteries. I have a powersafe which simply ignores if I connect a non-lead acid battery.

  5. #15
    Moderator B7ACKTHORN's Avatar
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    Default Re: Charge Your Bike/Car Batteries At Home

    Quote Originally Posted by lockhrt999 View Post
    Just keep in mind that some UPS are very picky when it comes to batteries. I have a powersafe which simply ignores if I connect a non-lead acid battery.
    Well, we'll have to first open the UPS to see how it fares. Not anytime, soon, but if it goes well or blows up, updates will be promptly provided.

    Cheers!
    VJ
    Once upon a time, a guy asked a girl 'Will you marry me?'
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    And the guy lived happily ever after and rode motorcycles and watched sport on a big screen TV, went fishing and surfing, and played golf a lot, and drank beer and scotch and had tons of money in the bank and left the toilet seat up and farted whenever he wanted.


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    Rusted BloggingWheels's Avatar
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    Default Re: Charge Your Bike/Car Batteries At Home

    @B7ACKTHORN
    A VRLA battery (valve-regulated leadacid battery), more commonly known as a sealed battery or maintenance free battery, is a type of leadacid rechargeable battery. Due to their construction, they do not require ventilation, can be mounted in any orientation, and do not require constant maintenance. The reduced venting is an advantage since they can be used in confined or poorly ventilated spaces.
    Above Source: Wikipedia




    Actually, what VRLA does is that it traps the liberated hydrogen molecules and in a way recombines the same with the 'fixed/immobilized' electrolyte when the battery is under AC charging. Because of its construction, it drastically reduces the need for having a vent in the first place and hence the popular term - 'Maintenance Free'. However, as a measure of safety, there is a pressure valve built for letting off the excess gas buildup inside the battery compartment. But I have not come across any source/info till date that some MF battery's pressure valve was blown off! Maybe there have been cases I am not aware of. From a standard car, 4WD or truck alternator they will recharge quickly from full use in about 2 to 3 hours. In comparison, a deep cycle wet cell battery can roughly take 8-12 hours to achieve only 70% to 80% of its potential charge.

  7. #17
    psr
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    Default Re: Charge Your Bike/Car Batteries At Home

    Instead of running the risk of damaging the charger inside the UPS , there are many 12 Volts 10~30 Amps stand alone SMPS units ranging from 600 to 2,000 which will be a safer option... I had previously used a PC SMPS converted for charging my Car battery, but I had since gone in for a 12 Volts 10 Amps Forward converter design unit which is serving me well for the past year....I bought it on E-Bay for 750/- and it also has a variable control by which the out put voltage can be adjusted between 11 to 13.8 Volts. 13.8 Volts is ideal for float charge of a 12 Volts Lead Acid Battery....The unit has output open short circuit and overload protection....The unit is small with 4 " X 7" and about 1.5 inches height.
    Here is a Picture of it

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    Default Re: Charge Your Bike/Car Batteries At Home

    This is a easy way of recharging and many DIY guys do it. I charged my unicorn battery with my computer UPS. All you need to know is the basics.

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    Default Re: Avenger 220 Battery Charging

    Hey bro,

    Great info. I really appreciate that!
    Have faced the same a week before later i started browsing to troubleshoot that and had found this useful stuff with clear pictorial rep.

    I carefully followed each steps you instructed and yes waited for 8 hrs too with more patience. Finally when i plug the cables to the terminals of battery, have not get the result like i expected. Still there is low bt indicator and couldn't start my bike. So fed up as i followed all the stuffs.

    Thing i observed while connecting battery is when i connect +ve terminal after connecting -ve one, there was spark created. Don't know the reason. Don't know whether is that be the problem..

    Need someone to assist me.

    Thanks

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    Default Re: Avenger 220 Battery Charging

    Quote Originally Posted by Asun View Post
    Hey bro,

    Great info. I really appreciate that!
    Have faced the same a week before later i started browsing to troubleshoot that and had found this useful stuff with clear pictorial rep.

    I carefully followed each steps you instructed and yes waited for 8 hrs too with more patience. Finally when i plug the cables to the terminals of battery, have not get the result like i expected. Still there is low bt indicator and couldn't start my bike. So fed up as i followed all the stuffs.

    Thing i observed while connecting battery is when i connect +ve terminal after connecting -ve one, there was spark created. Don't know the reason. Don't know whether is that be the problem..

    Need someone to assist me.

    Thanks
    The sparking is normal.

    I did a writeup on a DIY battery charger using an old discarded DC adapter here:

    http://sgbikerboy.com/2016/10/20/1-d...ttery-charger/

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