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MotoBatt mbtx9u 80% out of box

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Commuter_Tim
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PostPosted: 21:03 - 13 Jan 2015    Post subject: MotoBatt mbtx9u 80% out of box Reply with quote
Got a new battery as I killed the last one with short trips and neglect.

The new one from wemoto arrived today, supposedly meant to be ready to use out of the box.
I chucked mine on the Oxford Oximiser anyway, it was showing about 80% life and started charging it up.

I tested the Voltage and its about 12.82V (tested after 10 mins charging, now showing about 90% charge)
Is this a concern? or is it simply that the bike is meant to charge the rest up with a long ride?

Cheers
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The above post is most likely nonsensical.

I ride a Bandit 600... badly.

Last edited by Commuter_Tim on 21:09 - 13 Jan 2015; edited 1 time in total
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Copycat73
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PostPosted: 21:09 - 13 Jan 2015    Post subject: Reply with quote
I got 12.68v on me R1 batt. after its been on conditioner for 7 years..
so I wouldn`t worry.
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Commuter_Tim
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PostPosted: 21:10 - 13 Jan 2015    Post subject: Reply with quote
Gotcha, I wasn't so much worried about the voltage tbh.
More that it's straight out the box and Mr Oximiser thinks it has to "bulk" charge 20% more before going on "maintain" charge?
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talkToTheHat
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PostPosted: 02:15 - 14 Jan 2015    Post subject: Reply with quote
Mine was similar, would probably have started bike, but HG charger fed it more juice anyway. Has worked fine since.
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Rogerborg
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PostPosted: 09:53 - 14 Jan 2015    Post subject: Re: MotoBatt mbtx9u 80% out of box Reply with quote
Commuter_Tim wrote:
supposedly meant to be ready to use out of the box.

I'd infer "able to start the bike" rather than "100% fully charged".
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Matt B
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PostPosted: 10:07 - 14 Jan 2015    Post subject: Reply with quote
" It comes to you pre-conditioned and fully charged for optimum performance and ready to install out of the box. "

They claim fully charged, from which most people would infer 100%.

Ready to install means you don't need to dump acid into it before you can fit it.
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stinkwheel
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PostPosted: 10:46 - 14 Jan 2015    Post subject: Reply with quote
Is an oximiser suitable for use on a AGM battery?

Genuine question because I don't know.
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Rogerborg
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PostPosted: 11:10 - 14 Jan 2015    Post subject: Reply with quote
Matt B wrote:
" It comes to you pre-conditioned and fully charged for optimum performance and ready to install out of the box. "

They claim fully charged, from which most people would infer 100%.

I would indeed have inferred that if OP had told us the actual sales blurb. That'll learn me to be so trusting. Wink
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Matt B
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PostPosted: 11:17 - 14 Jan 2015    Post subject: Reply with quote
Fully charged is a bold claim though.

Surely they must lose charge over time just sat in the box waiting to be sold?
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Baffler186
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PostPosted: 12:30 - 14 Jan 2015    Post subject: Reply with quote
Matt B wrote:
Fully charged is a bold claim though.

Surely they must lose charge over time just sat in the box waiting to be sold?
That's what I would have thought. All they can claim is that it's at 100% charge when it leaves their warehouse, so if it's sat at the back of a shelf on aisle 3 for long enough it could theoretically be flat when finally sold?
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Rogerborg
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PostPosted: 12:51 - 14 Jan 2015    Post subject: Reply with quote
Matt B wrote:
Fully charged is a bold claim though.

Verb: "The battery was fully charged."

Adjective: "The battery is fully charged."
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Biking is 1/20th as dangerous as horse riding.
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b422063
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PostPosted: 16:20 - 14 Jan 2015    Post subject: Reply with quote
It comes "full charged for optimal performance". What makes you think 80% isn't optimal performance. It starts a bike, what more do you want?
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mentalboy
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PostPosted: 16:52 - 14 Jan 2015    Post subject: Reply with quote
stinkwheel wrote:
Is an oximiser suitable for use on a AGM battery?

Genuine question because I don't know.


I did wonder as well, I know my old Oximiser wasn't suitable, maybe newer models are? Maximiser is the Oxford model I've used for my AGM battery.

Commuter_Tim wrote:

I chucked mine on the Oxford Oximiser anyway, it was showing about 80% life and started charging it up.

I tested the Voltage and its about 12.82V (tested after 10 mins charging, now showing about 90% charge)
Is this a concern?


What was the initial voltage of your battery? Motobatt specs give 12.78V as 97% of full charge.
AGM batteries must be charged with constant voltage not taper and if you overcharge it you will kill it.
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Commuter_Tim
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PostPosted: 20:07 - 14 Jan 2015    Post subject: Reply with quote
Rogerborg wrote:
Matt B wrote:
" It comes to you pre-conditioned and fully charged for optimum performance and ready to install out of the box. "

They claim fully charged, from which most people would infer 100%.

I would indeed have inferred that if OP had told us the actual sales blurb. That'll learn me to be so trusting. Wink

OP is a moron who may have charged his battery wrong, why on earth did you trust him? Razz

mentalboy wrote:
stinkwheel wrote:
Is an oximiser suitable for use on a AGM battery?

Genuine question because I don't know.


I did wonder as well, I know my old Oximiser wasn't suitable, maybe newer models are? Maximiser is the Oxford model I've used for my AGM battery.

Commuter_Tim wrote:

I chucked mine on the Oxford Oximiser anyway, it was showing about 80% life and started charging it up.

I tested the Voltage and its about 12.82V (tested after 10 mins charging, now showing about 90% charge)
Is this a concern?


What was the initial voltage of your battery? Motobatt specs give 12.78V as 97% of full charge.
AGM batteries must be charged with constant voltage not taper and if you overcharge it you will kill it.


I don't understand what you mean by "taper" charging? Is that if you use a generic charger not designed for bikes that doesn't know when to stop?

I neglected to check the voltage before chucking it on charge for 10 mins, me and electricity do not mix well. Sad
I chucked it in the bike regardless last night, it either starts as badly as before, or worse.

Quote:
Suitable for all 12V battery types up to 30Ah including Lithium, Gel, MF and conventional lead and refillable batteries

That's from the OXford website on the Oximiser 900, it says suitable for all 12v battery types, but doesnt list AGM, that does not instill confidence.

Can anybody suggest a new charger for the new battery that I likely need to buy yet again, that is not an Oxford piece of shit?

Lesson learned.
Cheers again for all the help, even if I did ask the question a bit late. Sad

TL:DR if I have "killed" the battery will it just present with a lower voltage now?
I assume since the bike does start and all electrics work that I at least probably haven't harmed that?
____________________
The above post is most likely nonsensical.

I ride a Bandit 600... badly.

Last edited by Commuter_Tim on 21:22 - 14 Jan 2015; edited 2 times in total
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stinkwheel
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PostPosted: 21:06 - 14 Jan 2015    Post subject: Reply with quote
If it's claiming to be suitable for lithium batteries, I suspect it's going to be a pretty smart charger. Lithium cells are notoriously fussy and dangerous with their charging requirements.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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mentalboy
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PostPosted: 23:25 - 14 Jan 2015    Post subject: Reply with quote
Commuter_Tim wrote:


I don't understand what you mean by "taper" charging? Is that if you use a generic charger not designed for bikes that doesn't know when to stop?

I neglected to check the voltage before chucking it on charge for 10 mins, me and electricity do not mix well. Sad
I chucked it in the bike regardless last night, it either starts as badly as before, or worse.

Quote:
Suitable for all 12V battery types up to 30Ah including Lithium, Gel, MF and conventional lead and refillable batteries

That's from the OXford website on the Oximiser 900, it says suitable for all 12v battery types, but doesnt list AGM, that does not instill confidence.

Can anybody suggest a new charger for the new battery that I likely need to buy yet again, that is not an Oxford piece of shit?

Lesson learned.
Cheers again for all the help, even if I did ask the question a bit late. Sad

TL:DR if I have "killed" the battery will it just present with a lower voltage now?
I assume since the bike does start and all electrics work that I at least probably haven't harmed that?


That charger should be fine - Gel and AGM batteries both requires a constant voltage to charge up.
Taper voltage is what an 'intelligent' charger uses to charge a traditional style lead acid battery. ie the longer it's on charge the more the supplied voltage tapers off (If I've understood it correctly!)

Two things I'll say about AGM batteries: They take forever to charge up and they don't hold a starting charge much beyond a month of disuse (I was told that an AGM battery in cool storage condition should hold a charge for 3+ months).
And thirdly - when flat you can't jump start it off a car battery if you connect the jump leads to both terminals (never tried it by using neg lead connected to an earth point instead), absolutely no idea why - unless it's something to do with an abysmally low Ah intake?
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Commuter_Tim
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PostPosted: 00:56 - 15 Jan 2015    Post subject: Reply with quote
mentalboy wrote:

That charger should be fine - Gel and AGM batteries both requires a constant voltage to charge up.


Thanks for the re-assurance, even if you are just lying to make me feel better! Laughing

It reached 'maximum' and switched to maintain quite quickly anyway, then I chucked it on the bike, so If I was damaging it, it can't have been for long.

This is the only way I seem to learn with bikes, I fuck something up, then learn from it, expensive but Informative.

So even though one of the most expensive, are Motobatt/AGM batts not the wiser choice then?
Or is it more dependant on whether you can be arsed to top up acid ones?
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The above post is most likely nonsensical.

I ride a Bandit 600... badly.
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