Premium Member DavidS Posted April 19, 2018 Premium Member Share Posted April 19, 2018 Put my bike away late last fall, put the battery tender on the battery, and when I went to get her ready for 2018, the battery was completely dead! Had it tested, and it was empty and wouldn't hold a charge. I know the batteries on our bikes aren't very good, but really? Now to find a new battery to put in that (hopefully) is much better. Any suggestions? Link to comment Share on other sites More sharing options...
Premium Member micah2074 Posted April 19, 2018 Premium Member Share Posted April 19, 2018 I got this one when mine died https://www.revzilla.com/motorcycle/bike-master-lithium-ion-battery-dlfp-12-bs It’s cheaper than the factory replacement and LIGHT. I mean crazy light. When the package arrived I picked it up and thought that they sent me an empty box. Let’s go Brandon Link to comment Share on other sites More sharing options...
koth442 Posted April 19, 2018 Share Posted April 19, 2018 I got this one when mine died https://www.revzilla.com/motorcycle/bike-master-lithium-ion-battery-dlfp-12-bs It’s cheaper than the factory replacement and LIGHT. I mean crazy light. When the package arrived I picked it up and thought that they sent me an empty box. That's a great price for a Li battery. '15 FJ09 Link to comment Share on other sites More sharing options...
Premium Member Brick Posted April 19, 2018 Premium Member Share Posted April 19, 2018 Hmmm... I wonder if your battery tender is faulty. They are not supposed to cook all the liquid out of a battery. ? How old was this battery? Brick 2015 Yamaha FJ-09 "Red Molly" 2014 Yamaha Super Tenere' ES 1999 Suzuki SV650 Link to comment Share on other sites More sharing options...
Premium Member DavidS Posted April 19, 2018 Author Premium Member Share Posted April 19, 2018 Hmmm... I wonder if your battery tender is faulty. They are not supposed to cook all the liquid out of a battery. ? How old was this battery? Original to my 2015 FJ-09, I bought it in September 2015...... and I used the charger last year and the year before with no issues Link to comment Share on other sites More sharing options...
metallion Posted April 19, 2018 Share Posted April 19, 2018 I had a battery die on me last summer while hooked up to a tender on one of my other bikes. It was only about 3-4 months old to. Turns out that my tender lead on the bike was not making a solid connection, therefore it discharged the battery. In my case it had been on that bike for over a decade and was fatigued from so many years of use. I swapped in a new lead and recharged the battery back up slowly with the tender and it came back to life. 2019 Tracer 900 GT. 2022 MT-09SP. 2002 Buell S3T Thunderbolt. 2016 FJ-09 SOLD. 2019 XSR900 SOLD. Link to comment Share on other sites More sharing options...
PFJohns Posted April 19, 2018 Share Posted April 19, 2018 Just be aware that lithium-ion batteries are light, but not good for cold weather cranking. As a year-round commuter in the Mid-Atlantic area, I just use the standard old sealed OEM type. Link to comment Share on other sites More sharing options...
Premium Member britelitebob Posted April 19, 2018 Premium Member Share Posted April 19, 2018 Just be aware that lithium-ion batteries are light, but not good for cold weather cranking. As a year-round commuter in the Mid-Atlantic area, I just use the standard old sealed OEM type. And they die real quick if you accidently leave your light on and breifly walk into a convenience store.....twice. BLB Link to comment Share on other sites More sharing options...
Guest highplainsrider Posted April 19, 2018 Share Posted April 19, 2018 The only time that I have had to replace a battery in less than 4 years is when I used a battery tender. I’m starting to think those things could be worse than doing nothing. 3 years on my OEM battery without using a charger and it is still good. Going to start shopping for a replacement now even after knocking on some wood. Link to comment Share on other sites More sharing options...
Premium Member estell Posted April 19, 2018 Premium Member Share Posted April 19, 2018 The FJ-09 owners manual states that the battery is a VRLA (Valve regulated lead acid). It also states that a VRLA battery must be charged with a constant-voltage charger, and that a conventional battery charger will damage the battery. Is your battery tender a constant-voltage charger? 2015 red FJ-09: Cal Sci screen, Sargent seat, ECU flash, slider combo, cruise, Rizoma bars, Matts forks, JRi shock, slipper clutch Link to comment Share on other sites More sharing options...
Premium Member micah2074 Posted April 19, 2018 Premium Member Share Posted April 19, 2018 Just be aware that lithium-ion batteries are light, but not good for cold weather cranking. As a year-round commuter in the Mid-Atlantic area, I just use the standard old sealed OEM type. I ride year round and have had no problems starting my bike in sub freezing weather with the Lithium battery. Let’s go Brandon Link to comment Share on other sites More sharing options...
Premium Member micah2074 Posted April 19, 2018 Premium Member Share Posted April 19, 2018 Just be aware that lithium-ion batteries are light, but not good for cold weather cranking. As a year-round commuter in the Mid-Atlantic area, I just use the standard old sealed OEM type. And they die real quick if you accidently leave your light on and breifly walk into a convenience store.....twice. Haven’t had this problem either. Let’s go Brandon Link to comment Share on other sites More sharing options...
koth442 Posted April 19, 2018 Share Posted April 19, 2018 Just be aware that lithium-ion batteries are light, but not good for cold weather cranking. As a year-round commuter in the Mid-Atlantic area, I just use the standard old sealed OEM type. I ride year round and have had no problems starting my bike in sub freezing weather with the Lithium battery. Depends on the battery / bike combination. I had a Li battery I could start in near freezing weather after being outside overnight. But a buddy who kept his bike in a garage couldn't start his bike sub 40 degrees. In his case I figured it was more a picky Triumph Daytona 675 than a battery (that bike hates starting in cold weather... ask me how I know lol). '15 FJ09 Link to comment Share on other sites More sharing options...
dangerzone2 Posted April 20, 2018 Share Posted April 20, 2018 I ride year round and have had no problems starting my bike in sub freezing weather with the Lithium battery. Depends on the battery / bike combination. I had a Li battery I could start in near freezing weather after being outside overnight. But a buddy who kept his bike in a garage couldn't start his bike sub 40 degrees. In his case I figured it was more a picky Triumph Daytona 675 than a battery (that bike hates starting in cold weather... ask me how I know lol). My KTM 690 has a Li batt and its a pain in the ass. Granted, turning over all 650cc's at one time is much harder than spreading the displacement out over a few cylinders, regardless, the thing is picky under 50 degrees. I got it down to turning the ignition on and high beams while gearing up, then low beams and hold the "flash to pass", then it usually cranks no problem. If I had to buy a battery for my FJ, there's no way it would be a Li. Saving a few pounds is not worth it for this bike (IMO) Link to comment Share on other sites More sharing options...
Spike Posted January 20, 2020 Share Posted January 20, 2020 On 4/19/2018 at 7:13 AM, PFJohns said: Just be aware that lithium-ion batteries are light, but not good for cold weather cranking. As a year-round commuter in the Mid-Atlantic area, I just use the standard old sealed OEM type. They need to be woken up a little in the real cold. Turn the key on with the lights for 10-30 seconds, warms up the battery. Then try to start it. Link to comment Share on other sites More sharing options...
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