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Scooters - 125 to 300 => Downtown 300 => Topic started by: Grumpet on January 22, 2018, 05:33:18 PM

Title: Kymco battery problem
Post by: Grumpet on January 22, 2018, 05:33:18 PM
I am grumpier, proud owner of  one kymco 300 downtown.
A few  days ago my battery went totally flat, it's partially my fault due to not using it and lot, and I want to buy a new one which one should I buy? : I found two types maintenance free and with acid. I tend to lean toward the maintenance free but I am not sure about the type of battery to buy.
Any help is appreciated, I live in the UK but I am not from there so I don't know where to buy a battery
Title: Re: Kymco battery problem
Post by: pipster326 on January 22, 2018, 06:21:45 PM
I just replaced my stock kymco battery,on my 2012 Downtown 300i. It was a kymco GT12a-bs. It is really your choice of which battery you prefer,just make sure that it’s the same size. Here in the states,there are many places to get a replacement battery. Any motorcycle or scooter shop,should have them in stock. Online,they run about $25-$30 USD. Not sure what the mark up is at a shop.Also,once you get the battery,make sure to get a battery tender,to keep it charged,especially if your not using it on a regular basis


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Title: Re: Kymco battery problem
Post by: Grumpet on January 22, 2018, 06:50:54 PM
Thanks for the reply, so the correct battery is yt12a-bs?.
I have also been given by a friend a YTX12-BS battery, is this one OK for size, voltage etc  for the kymco downtown 300?

Also to every battery I buy, must I add acid?
Title: Re: Kymco battery problem
Post by: pipster326 on January 22, 2018, 07:55:05 PM
That battery should work, as long as it fits in the battery compartment, even if it is a little bigger, it’s gonna be a pain to get it in. I believe that battery is maintenance free, so you don’thave to add anything


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Title: Re: Kymco battery problem
Post by: Grumpet on January 22, 2018, 08:09:11 PM
I asked about the acid because the battery I ordered from amazon arrived with electrolytes to add{sulfuric acid} then seal it and its ready. Do I need to charge it before, or can I use it straight away?
Title: Re: Kymco battery problem
Post by: de dee on January 22, 2018, 09:29:19 PM
you can check if it needs a boost , put a charger on it , If  it charges leave it for 12 hours, It will take about a week of riding to get the battery to full charge, they need to learn just like kids,  like tires need to be broken in when new,  about 100 miles,. 
Title: Re: Kymco battery problem
Post by: Grumpet on January 22, 2018, 09:34:14 PM
As soon as the yt12a-bs (yes I ordered one to be sure} arrives I will try it with the scooter.

Since my scooter battery  "died" at friends place, I'll have to put it without charging, I need to bring the scooter home.

I will try to charge the battery later on.

Thank for the helpful advice
Title: Re: Kymco battery problem
Post by: Trucker jay on January 29, 2018, 09:31:57 PM
Every battery that I had to add the sulfuric acid needed charged before use
Title: Re: Kymco battery problem
Post by: Stig / Major Tom on January 29, 2018, 10:51:13 PM
YUASA battery from AMAZON, come charged and sealed, can be laid on side (as in a Burgman 400)

Stig
Title: Re: Kymco battery problem
Post by: mousejunks on January 30, 2018, 09:12:36 AM
I had a Motobatt MBTX-9U, ran for a few years before the regulator failed and it went flat.
Title: Re: Kymco battery problem
Post by: wheels on January 31, 2018, 12:23:01 AM
Here is what I have for batteries.
Battery         Kymco  GT12A-BS,       Xtreme  XTA12A-BS

Replaced with the Extreme which looked identical, but I could not squeeze it past
the security (brass colored) brackets.   I took an angle grinder and cut some of the
bracket off.
Title: Re: Kymco battery problem
Post by: Tromper on February 02, 2018, 12:48:02 PM
How'd it go Grumpet?

You get it home and charged?

Title: Re: Kymco battery problem
Post by: ModChiP on February 03, 2018, 06:00:02 PM
what about lifepo4 battery?

https://www.aliexpress.com/item/Brand-lifepo4-38120-10ah-3-2v-lifepo4-battery-cells-diy-ebike-pack-38120-100A-celulares-5c/32676542722.html?aff_platform=aaf&cpt=1517680729329&sk=uFmuvZBaM&aff_trace_key=6875d426c3f94ddaa08bd42825b38a19-1517680729329-08192-uFmuvZBaM&terminal_id=8189f9dc035a4372bf95b27fdc62e9fa (https://www.aliexpress.com/item/Brand-lifepo4-38120-10ah-3-2v-lifepo4-battery-cells-diy-ebike-pack-38120-100A-celulares-5c/32676542722.html?aff_platform=aaf&cpt=1517680729329&sk=uFmuvZBaM&aff_trace_key=6875d426c3f94ddaa08bd42825b38a19-1517680729329-08192-uFmuvZBaM&terminal_id=8189f9dc035a4372bf95b27fdc62e9fa)
Title: Re: Kymco battery problem
Post by: Grumpet on February 05, 2018, 08:37:17 PM
i Apologize for the delay, the scooter is fine i just used the yuasa battery.

1)opened the scooter
2) put in the battery

3) Profit