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Discussion Starter · #1 ·
Anyone try a li-ion or lipo battery in their new valk? I'm getting some weak starts lately and figure this Yuasa battery's about to go. I ride everyday so it's not from sitting. I also wonder if my alternator is overcharging the battery. My multimeter says it's about 13.5 volts, and after I start, the voltage reads about 14.2 at idle. This battery is slightly under 2 years old so I'm getting a bit annoyed.
 

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Well, lucky you, I happened to still be on the site when I saw your question that I know very little about, answer-wise. The only reason I'm responding to waste your time is that I remember reading in more than one motorcycle magazine review (when the bike first came out) that "Valkyries use the same alternator system as GWs". The reason I remember (and keep in mind, I don't know whether or not he was accurately informed or not) is because of the writer's specific comment about it. He said, (paraphrasing from memory) "and because Honda decided that it made more sense, cost-wise, to just use the same alternator as the GW (vs. one made specifically for the Valk) owners can probably add whatever accessories their hearts' desire as it was built to power a GW with all of its bells, whistles and lights. And more lights."

I still have the original battery in mine and I've been amazed that, even after cold Illinois winters in an unheated garage, and with no battery tender, the bike fires up strong each and every day I've wanted it to. Maybe you got a less-than-optimum battery in yours? Something you maybe added (electrical accessory?) that isn't grounded properly or is draining somehow? I've wondered about Lithium bats, too, and was going to buy one when mine died, but now I'm curious if my original is going to make it through another winter! Good luck, and sorry to waste your time. But now at least you won't feel ignored!
 

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Discussion Starter · #3 ·
I bought the bike as a demo bike july 2016 with 600 miles on it, so when the 1rst battery died, (it didn't completely die, just failed to start on 30° mornings but would start fine above that temp.) I added a socal pathfinder foglight that same year, don't think I did anything wrong but if it was draining the battery, I don't think I'd be seeing 13+ v at start. I didn't think too much on it and just bought an oem replacement. Now almost 2 years later and it's not even cold out, the new battery is giving me weak starts. If anyone's tried an alternative battery that's working for them, would just love to hear about it.
 

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I have had good luck with YUASA batterys other brand for me never lasted as long.
As far as alternators I have heard bad things after the cheap ones from China, If you need a alternator best bet is to buy the over priced one from Honda.
 

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Well, lucky you, I happened to still be on the site when I saw your question that I know very little about, answer-wise. The only reason I'm responding to waste your time is that I remember reading in more than one motorcycle magazine review (when the bike first came out) that "Valkyries use the same alternator system as GWs". The reason I remember (and keep in mind, I don't know whether or not he was accurately informed or not) is because of the writer's specific comment about it. He said, (paraphrasing from memory) "and because Honda decided that it made more sense, cost-wise, to just use the same alternator as the GW (vs. one made specifically for the Valk) owners can probably add whatever accessories their hearts' desire as it was built to power a GW with all of its bells, whistles and lights. And more lights."

I still have the original battery in mine and I've been amazed that, even after cold Illinois winters in an unheated garage, and with no battery tender, the bike fires up strong each and every day I've wanted it to. Maybe you got a less-than-optimum battery in yours? Something you maybe added (electrical accessory?) that isn't grounded properly or is draining somehow? I've wondered about Lithium bats, too, and was going to buy one when mine died, but now I'm curious if my original is going to make it through another winter! Good luck, and sorry to waste your time. But now at least you won't feel ignored!
Went out to the (unheated) garage here in south-central Illinois to see if the bike would start. Hadn't tried it since I last rode it in November. Original battery, 2014 Valk. We've had weather in the teens lately, and both my car and truck needed a jump. (Hadn't driven them in a month either, so no surprise.) The thing started as if it were July and I'd just ridden yesterday. Didn't crank over ANY more than it always does. Just wanted to follow up this thread with some pertinent, personal experience.
 

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ive noticed my 2015 Valk is doing the slow crank starting also. wondering if mebbe the battery is the culprit.? does have a Deltran Tender on it too which is why im a lil concerned🤔. summer and fall starting has been just fine until recently here in January when it started the slow cranking. also have barebones cold garage here in Columbus O.
 

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I put a Lithium battery in my wife's Spyder a few years ago. It was a total piece of crap. It lasted about two months and then the bike started throwing codes. At the time I figured it had to be something else because the battery was pretty new, but it was the battery. I won't ouch one of those again. I went back to Yuasa and never had any issues.
 

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Anyone try a li-ion or lipo battery in their new valk? I'm getting some weak starts lately and figure this Yuasa battery's about to go. I ride everyday so it's not from sitting. I also wonder if my alternator is overcharging the battery. My multimeter says it's about 13.5 volts, and after I start, the voltage reads about 14.2 at idle. This battery is slightly under 2 years old so I'm getting a bit annoyed.
You don't want lithium. Stick to gel cell. Lithium has problems with heat and the constant charging and discharging will wear it out in under a year. Just think about how much battery life you've lost in your cell phone over a year.

And no your alternator isn't over charging. 14.2v is prefectly normal, and your bike has systems to prevent over charging.
 

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I bought a Battery Tender Lithium Iron Phosphate 240cca battery in July, 2017 for my CB1100 and it started having problems late last Fall when it's under 50 degrees outside. Never again.
 

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just replaced the 3 1/2 year old yuasa with a Duracell 310 cca gel battery. picked up from (Batteries Plus)for $106 OTD and has a 24 month replacement warranty. seemed to be a pretty good deal.
 
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