Endless Sphere

It does affect it. But they can't know what voltage you're going to run at. The point of using the chart is you need to know your system wattage. When you know that, you divide out your personal system voltage you'll be using to get the amps that will be flowing. Then you get the wire size you need ...

So much lead acid misinformation in one place! Some lead acid updates from the last decade.... While never matching lithiums power to weight, AGM (absorbed glass mat) lead acids have solved all the other complaints about lead. They can sit on a shelf for a year without self discharging or sulphating...

Yep, when you need a reliable 2400 cranking amps lead still has a place, and also as a large cruising sailboat pack where fire safety is critical and you need some ballast anyway. That a Northstar AGM... super pure lead, virtually zero self discharge, and sent in matching serial number lots for clos...

Does the controller have a pair of single, usually grey, wires that plug together?

The fork steerer tube should stop about 4 or 5mm below the top of the plate if you're using direct mount stem... Not lower than the clamp bolt, but not flush with the top either.

I ended up manually balancing the battery and the charger went back to operating normally.

On one of mine that has a cheap BMS, it doesn't seem to actually balance. Instead, when a group hits 4.18, but the total voltage is too low, it goes into that cutting the charge and flashing the green light mode. Maybe it was balancing, but so imperceptibly slowly it would have taken a week to even ...

Yes.. All the other combos either wouldn't fit past the throttle, or sat a funny distance from ones thumb. I actually end up using the front shifting with the thumb a lot with the bigger jumps between gears instead of the back, esp in city traffic, as you need to run thru the gears so fast in the ba...

Sure looks corroded on the BMS like it got some water intrusion... Esp at the corner posts.

I went thru a bunch of different setups of every type of trigger and twist grip shifter, and is really hard to get a combo that feels natural actually using all the gears.... ended up with a twist rear and thumb lever front. Works out pretty well.

Bummer.

Once you're making the jump to a new battery, it's not much further of a leap to just get a modern brushless motor and controller... Those frames are great all arounders, and there's tons of cheap drive packages out there. IMG_20190222_122105.jpg Then comes getting rid of the tiny crank and putting ...

Yes, it seems like the main point of the tilting would be to make the g forces on the driver less side to side in the turns.

And for the Piaggio crowd...

Bummer! Better finding it now than later. One possibility is even though the cells could handle it, the ripping session overheated one of the strips into melting thru the wrapper and shorting to the metal can, which would explain the sparking when poking it too.

Are you going to parallel them up? That is, use them at the same time, or swapping a fresh one in?

It's totally fine... Just size the wire connecting the packs for the full load.

Be thinking fire safety... If the pack is big enough to run for a good long while, it might be too big to drag away from the RV in a worst case scenario.

You really should be checking the individual groups as you bulk charge it, not just the total voltage. A new pack shouldn't self discharge, and if the BMS itself was unbalancing the pack while sitting around, and cutting out because it couldn't keep up with the imbalance now that it's charging, you ...

Chain drive is actually one of the most efficient gear reduction systems, in addition to being easily regeared if you want to change ratios down the line.

But it goes so fast (14.5 mph)! There is going to be a whole generation of this type of connected low power bike, as share bike and last mile solutions scale up. It's going to be getting harder to sell overpriced gas cars stuffed with features to keep you distracted from wondering about the system a...

Re the battery size, you could go a little bigger, say 14ah, and it won't hurt anything if that's what's around. 10ah would work in a pinch, but would die really quickly anyways from the loads, separate from the charger thing.

That looks like one of the mid size ones. Prob was 48v lead acid, but maybe 60v. You could start with 3 lead acid for 36v, and see if it runs, then try 4. Better than starting high and working down.

The 15 amps is how much you can draw from that cell without overheating, theoretically.

No... It will be too wide to fit.

Just an FYI, one of my 25a labeled controllers was actually peaking at 55a during hard acceleration when I metered it. There's no way of really knowing from the label what a cheap controller actually draws .