yeah im pretty sure you have a bad battery. its not supposed to lose charge that fast from just sitting on a bench. if you have the warranty im sure your dealer can replace it for free
yeah im pretty sure you have a bad battery. its not supposed to lose charge that fast from just sitting on a bench. if you have the warranty im sure your dealer can replace it for freeI can't find the thread on here about someone's battery dying on the road and "maybe the dealer didn't charge it", but after reading it a week or so ago, I went down and removed mine while paint was curing on plastic parts. It read only 10.4 on my digital multimeter, so I charged it for several hours on a simple charger; it read 12.9 right after removing it from the charger, but began to fall right away. It went back down to 10.8 in a few hours just sitting on my bench. I've charged it again several times for 2-4 hours with the same results. Isn't it supposed to stay around 12.4? Both my other batteries keep a charge for weeks.
what nick ^^ saidyeah im pretty sure you have a bad battery. its not supposed to lose charge that fast from just sitting on a bench. if you have the warranty im sure your dealer can replace it for free
If the battery is losing nearly 2 volts just sitting on a bench for a few hours it has an internal short (bad plate insulator) in one cell. This you would think would/should be covered under warranty.it read 12.9 right after removing it from the charger, but began to fall right away. It went back down to 10.8 in a few hours just sitting on my bench. I've charged it again several times for 2-4 hours with the same results.
It's made in Indonesia along with the bike. I'll just replace it with one from Shorai like on my other two bikes. A warranty replacement means two long drives to the dealer; I'd rather just get a lithium iron unit shipped to me. At least I know about the battery now, before getting stranded...Most likely a bad cell. That means that it is not a new battery.
Is that battery from a new bike? My understanding is that the dealer is supposedly activate the battery as part of the PDI. Then precharge it properly. Something smell fishy here if it is from a new bike.
Good call, Lithium Ion batteries are best, wish they were cheaper for cars, all in due time.It's made in Indonesia along with the bike. I'll just replace it with one from Shorai like on my other two bikes. A warranty replacement means two long drives to the dealer; I'd rather just get a lithium iron unit shipped to me. At least I know about the battery now, before getting stranded...
Indeed, they did. 12.8+ after four days sitting most probably indicates a strong battery. The positive side effect of this is that the battery will recharge back up quickly and thus place less stress on the charging system. Moreover, short trips would be much less of a factor.My dealer must have done it the right way. After reading the post on adding leads for a trickle charger, I went and checked mine. It read 12.8-12.9, and that was after it sitting for about 4 days from the time I picked the bike up from the dealer.
Depending on charger and the battery's state of charge, the behavior can be different. If it is a current Deltran Battery Tender model, then most likely the battery was fully charged. That's good news. However, it's all good to have it plugged in. In practice, it is very difficult to get a lead acid battery to be truly 100% charged. Putting it in float-mode, can help, and should make sulfation lesser of a problem. This could mean less work come charge-capacity recovery time. You can play be ear too. If the battery is healthy and strong, and you don't have any non-stock electrical loads added, and just came back for a long ride, and will be riding again the next day, whether you plug it or not probably won't matter much.After I had installed the pigtail for the charger, I hooked it up and went from orange (charging) to green (charged) in less than 2 minutes.
I was wondering how the Shorai is working out? What charger did you buy for it?It was delivered a few hours ago:
Smaller than factory battery and weighs less than a pound! Shorai includes plenty of self-stick firm foam sheets of various thicknesses to fill-in the space in the battery box.
I won't get a chance to ride the bike for a few days to over a week due to crappy weather and work schedule. Will update thread then.
2734 grams - or right at 6 lbs.I don't have a scale, but the stock battery feels like 6-8 pounds maybe (using some exersize weights as a comparison).