Recent content by mrkelkel

Done! The new parallel pack is operating nicely. Decided to splice into the charging harness with an extra set of connectors so everything is reversible if required. Current to and from the parallel pack and the charging harness shouldn't exceed 10A, so the stock 18AWG wires should be...

Yep there's regen, but it maxes out stock at 2A and around 1kW. Doesn't sound like much (my e-moped does around 3kW) but was pleasantly surprised when I tried out the one-pedal (one-twist?) mode, didn't need to touch the cable drum brakes at all if I eyed the regen braking distance correctly. I...

Hehheheh Never thought something like this would be commercially available, gonna see if something similar is available in my neck of the woods. Thx

Yep, the battery does charge & discharge on the same set of terminals, its only connector also has only one pair of +ve/-ve wires. Yep to this too, the charging port has a direct connection to the controller too, albeit through two fuses. I'll be charging at 2A so they won't be an issue. Both...

Was sick of driving the car for short trips (<5km), and it just so happened that Ninebot had slashed prices on one of their China-road-legal scooters. 1890 yuan (265 USD) later, this arrived: Rides great (even with no front suspension) and does 35 km/h (22 mph) on flat ground, but range is...

Hi there, sorry for the late reply..... Like the other thread said, you're limited by the maximum current output of the battery, and you're almost at the limit with a 45A controller. When I ordered my battery I specifically asked for a 300A BMS to allow for future upgrades, you might want to...

Whoops :confused: Guess I can still hit 250km if I go easy on the throttle

Who doesn't like more power? Out with the old, And in with the new 8) (The ziptie arrangement looks janky, but the Fardriver is bolted down at the top, I could end up making a custom bracket though) A midnight Taobao session resulted in a new motor 8) It's rated at 3000W and up to...

Funny you should say that, just put in an order for a 72360 Fardriver a few hours ago 8) 190A max, but I'm limiting it to 150A for now, don't want to risk burning out the pack. I'm also swapping out the tires for black round Pirellis, so I'm sacrificing range for grip and safety, a tradeoff I'm...

I'm quite certain they're CATL cells :) Used their 120Ah cells for my e-moped and some 75Ah cells for a previous bike of mine. The pressure seals and heat shrink all scream CATL to me. It's almost impossible to buy brand new 0-cycle cells as an individual from CATL though. Most CATL cells on...

Huh, learned something new :D I guess that's why the stock controller is capped at 35A; I still got decent range when discharging at full throttle (35A 1C). The local moped riding hooligans would go with 300A controllers while using 20Ah SLAs, then wonder why they wouldn't hold a charge after...

Hey man! I actually got inspired to post my build after seeing your Chinese scooter and sportsbike builds. Absolutely cool rides The e-moped was registered as a motorbike under the new regulations, which gives it full road legality across the nation :D But it also means its subject to annual...

Even if the range degrades to 250km per cycle, and it dies out after only 500 cycles, I would still be getting an effective service life of 125000km, which would be a fantastic value for 1K USD :) Replacing the hub motor would cause some issues with licensing, as China doesn't allow for...

I got this e-moped last year as a village runabout for my dad, as his ride was getting a little long in the tooth. It's a Segway-Ninebot N90C, which had a list price of about 5500RMB (860 USD). It came with a 72V 35Ah SLA pack, with an advertised range of 150km. That figure was of course BS...

The BMSs of both packs have BT connectivity, so I can monitor the cell voltages on my phone. The main LiFePo4 pack was assembled using 24 56Ah hardcased cells. They are used cells, and I presume they were sourced from an electric bus (Many of those here in Mainland China). They're not the best...