Interesting Battery story

[papanorm]

Second that. I have the 720 amp one. It cranks the bike over with authority. I think it was $325 or so

Do you keep a tender on the bike with an antigravity battery? Thanks!

 

[rick danger]

Do you keep a tender on the bike with an antigravity battery? Thanks!

I do. If its a bike I'm not using every week or so at least. I'm not sure its necessary. In fact it probably isn't. I bought the tenders for winter storage really. So since I have them I stick them on the bikes used less frequently. even in summer. Amazon.com: OptiMATE Lithium 4s 0.8A, TM-471, 8-step 12.8V 0.8A sealed battery saving charger & maintainer : Automotive

 

[509GT]

Do you keep a tender on the bike with an antigravity battery? Thanks!

Absolutely, I keep tenders on all my bikes and rigs. Trickle chargers so they keep things topped off.

 

[ramonpoa]

Don't let your smart charger "lie" to you: The Surface Tension Trick​

Hi everyone,

I wanted to share a quick "lesson learned" from my garage today regarding my 2023 Rocket 3 GT.

Since I have a few different bikes in my stable, some of them inevitably end up sitting for a month or two between rides. The Rocket had been parked for about 60 days, so I decided to hook up my smart charger to top it off.

Almost immediately, the charger gave me the "Battery Full / Maintenance Mode" green light. Now, we all know that after two months of the bike's electronics being in "deep sleep," there is no way that battery was at 100%.

The Problem: It’s that classic Surface Tension (or surface charge) issue. The battery shows a high enough voltage to trick the charger’s sensors into thinking it’s full, even though it lacks the actual "depth" of charge and amperage needed to crank those 2,500cc.

The Fix: 1. I unplugged the charger.2. Turned the ignition on (without starting) and let the LED lights and dash run for about 60 seconds.3. This small load "woke up" the battery chemistry and cleared that fake surface voltage.

Once I turned the ignition off and plugged the charger back in, it finally recognized the actual state of the battery and started a proper charging cycle.

If you have multiple bikes that sit for a while, don't always trust that immediate green light! Give the battery a little "stress" first to get an honest reading.

Anyone else run into this with their Rocket?

 

[biker1059]

I'm still on the original battery, almost 6 years old. I'm just wondering when its going to let go.

 

[Mighty Mouse]

I'm still on the original battery, almost 6 years old. I'm just wondering when its going to let go.

Same here. Original 2020 GT bought in late December of said year. I keep it on the tender all the time. After a ride and the exhaust cools it’s back on the tender. It always starts on the first try. That said 2 weeks ago while 60 miles from home I went out to start it and it started as usual but I felt like my luck may run out soon so I bought another OEM battery. Here’s to another 5 plus years.

 

[vsteel]

5 years here and it is still going strong. FYI I don't leave it on a charger over the winter. About once a month I put it on for a day to top it off and the unplug it.