A couple of yr's ago a bought a motobatt battery, it was faulty & a refund given. I have now tried one again & it arrived today, (it's not yellow this time,it's black) not fitted yet but is on charge, so far it has taken some charge but has held at 13.9V at .23A, is this ok? My experience so far is that my Yuasa dropped to 000A when fully charged & I am now concerned about this new battery which is Absorbant Glass Mat (AGM). Any ideas folks I'm out of my depth.

I bought one of those yellow POS!
Lasted one month!
NEVER again Motobatt!
 
You didn't mention if your battery came dry and you had to add the acid to it after it arrived. The reason I ask is....you mentioned it arrived in a discharged state. To me, that implies it already had the acid added to it. I bought the biggest and highest CCA Yuasa AGM Battery I could get my hands. It came dry with the acid packs and so far it has served me well. I would never put a lot of confidence in a battery that arrived wet and discharged (if they can even ship a AGM battery that way). You never know how long it has be sitting on the shelf before it made it to you.
I must clarify: the cooked battery was 2 yr's ago & I was given an immediate refund. I now have another one arrived this week as my Yuasa is cooked after lying up in France for 4 weeks. Now here I'm in need of more help. The bike was ridden to a car park in France from where the breakdown truck collected it, 4 weeks later it arrived home with a completely flat battery 0.00V flat, & it won't take a charge, hence the new Motobatt which I believe to be in good condition. I fitted it today & pleased to see the instrument cluster fully working & the sweep ok, however, press the start button & not even a click of a relay, absolutely nothing at all. I have thought to check the kill switch isn't on & im lost is to what to look at. And still have the broken Detent spring to fix
 
Motobatt's come filled, charged and sealed. Pretty much the defining point of distribution for ALL Europe is Holland.
Special shippers generally. Many shippers WILL NOT SHIP LOOSE ACID HERE EITHER.

A duff one is just bad luck. I always check too - but both my bikes now have motobatts and they were smack on voltage wise.
The R3 has the black one in.

Jack - the problem MAY NOT BE what you think. Static Voltage is NOT important - what matters is the voltage when you thump the button.
Lead Acid batteries WILL (often rapidly) decrease voltage to feed amps. If the REAL voltage drops too far - then the ECU will not respond.
Motobatt did publish this on their web - have a look.

Just keep it on a battery tender when stood up for a while. Though my Motobatt held up fine for over a week in the UK in April.
Here I always have a tender on at home.

Or get a small LiFePO4 battery and mount in parallel - The way this LiFePO4 will then work is like a trickle charger. They hold a marginally higher voltage.
It's a tip I learned from some guys in the Paramedic industry. They do this on seldom used vehicles they cannot leave plugged in.
LiFePO4 tend to try and keep voltage up rather than deliver amps.
On a Motobatt this add-in is a cinch as you have the dual power posts.

Do you have ANYTHING fitted that draws ANY power when switched off?
Don't guess. Fit an ammeter and measure.

Also Check/Clean/Protect ALL connectors/fuses Poor connections consume energy.
Chris the old battery is knackered, 0.00V won't even light the inst cluster & will not take a charge, optima the shows "FAULT", hence this new Motobatt which seems ok but the bike won't start, not a glimmer of a click absolutely nothing. I'm out of ideas, any advice. I did check drainage current about 12 months ago 23ma, things running are clock alarm & tracker. Not relevant right now as battery just been fitted.
 
If it were me after such a LONG lay up especially in France (yes I'm biased) - I'd unplug and check/clean all connections and fuses - and use ACF-50 grease (or similar). AND CHECK ALL THE RUDDY CUT OUT SWITCHES (stand/clutch etc) - I HATE THEM. Then find a good annotated copy of the wiring diagram and start tracing with a good multimeter.

PS the gauges wont sweep if the Kill switch is off ;) - not on mine anyway.
 
And yet I have 2 running fine.
Anything purchased sight unseen is a risk.
And shippers are NOT careful with merchandise.

My future battery purchases shall be completed in person and NOT over the WWW!
 
Whacked in a Motobatt MBTX20U from the WWW today. Fully charged spun the beastie over beaut. Mixed reports so I will report in when it expires. Testing starts Saturday with a fang into town - 100km one way.
 
Back
Top