MP3 300 Hpe sport (2019) battery
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Member
Joined: 08 Dec 2020
Posts: 9

Mon Mar 15, 2021 12:06 pm quote
Hello

I bought a used 300 hpe sport here in London, UK
the previous owner hadn't had much use of it, and had it on a trickle charger.
It rode fine back home and again on another trip of c 2 miles.

I didnt ride for a week after, and the bike wouldn't start - dashboard showed c 10 volts.

I disconnected and charged up the battery, and the bike started fine. I checked the voltage at the terminals (with a multimeter) when running was c 14.5v which i presume means the stator works as well.

I left the bike for a couple days, and now it refuses to start again; 10.5 v on the dashboard.

Now, I presume I need a new battery. The one in the machine is YTZ14BS. The manual doesn't say a specific model, but its got a diagram with a yTX12BS in the picture. There is a specs table at the end that only says 12v with 10Ah.

So ... what battery do I need?
Also, I am just a bit concerned about parasitic leakage. Is there anything specific i should look at before ordering a battery?

thanks!
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 39463
Location: Pleasant Hill, CA
Mon Mar 15, 2021 1:08 pm quote
YTX14-BS OR YTX16-BS. Either will do.
Member
Joined: 08 Dec 2020
Posts: 9

Sat Mar 20, 2021 3:03 am quote
ytx-14bs arrived ... but its about an inch taller than my old one!

got to see if it fits....
Member
Joined: 08 Dec 2020
Posts: 9

Sat Mar 20, 2021 10:57 am quote
For what it's worth ..

The YTX14-BS is too tall to fit in the battery compartment. You cannot close the screw on 'lid'.

You can place the lid over the battery , but need longer screws, and it is no longer fully sealed. The seat does close, so there's that.

Will try to return the battery, else its an expensive lesson to check specs carefully
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 39463
Location: Pleasant Hill, CA
Sat Mar 20, 2021 1:41 pm quote
Is there no underneath battery tray that you can remove?
Member
Joined: 08 Dec 2020
Posts: 9

Tue Mar 23, 2021 1:34 pm quote
Unfortunately, there is no tray underneath.
I am returning the YTX for a Motobatt equivalent of the YTZ
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 39463
Location: Pleasant Hill, CA
Tue Mar 23, 2021 2:18 pm quote
Fraunhofer wrote:
Unfortunately, there is no tray underneath.
I am returning the YTX for a Motobatt equivalent of the YTZ
Good luck with that. None of my Motobatts (I tried three) lasted more than a year. After six months of use they all began to self-discharge, eventually not holding enough charge to start after two weeks of standing. Pretty poor for an AGM design.

That all mine suffered in the same way may just be coincidence of course, and perhaps someone daily driving just one scooter wouldn't experience anything like that.
Veni, Vidi, Posti
Neutrino MP3 492.7 AK, 2013 Moto Guzzi Norge
Joined: 29 Mar 2008
Posts: 21763
Location: Harriman, Tennessee, Tn
Tue Mar 23, 2021 2:57 pm quote
jimc wrote:
Fraunhofer wrote:
Unfortunately, there is no tray underneath.
I am returning the YTX for a Motobatt equivalent of the YTZ
Good luck with that. None of my Motobatts (I tried three) lasted more than a year. After six months of use they all began to self-discharge, eventually not holding enough charge to start after two weeks of standing. Pretty poor for an AGM design.

That all mine suffered in the same way may just be coincidence of course, and perhaps someone daily driving just one scooter wouldn't experience anything like that.
and I have had just the other experience with motobatt. I don't charge them . let them sit all winter long , might have to put an hour charge on them and fire up the scooters and good to go. buy new ones every 3 years or later.
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