Tongsheng 10 Km THROTTLE ONLY + Bafang Comparison: Battery consumption for TSDZ2 500W Mid-drive kit

00:19 - Talking about that, and before diving into it, don’t forget to hit the SUBSCRIBE button with 🔔 the bell icon, so you won’t miss any of my future experiments on this channel.

00:28 - That said, lemme just recap the previous videos in order to give you a little bit of context.

00:32 - After a first Bafang vs Tongsheng comparison video, that you can watch by clicking the link up here, I started to think about comparing the two mid-drive conversion kits in a reasonable, tangible way.

00:43 - This video is not about max speed, if that’s what you’re interested in, just buy a Bafang kit and don’t bother.

00:50 - The two motors are very different about the way the pedal assistance works, hence the way the energy is consumed.

00:56 - While the Bafang kit uses a cadence sensing system that just pushes you until you reach the pre-defined speed for the selected assistance level, the Tongsheng one uses a torque sensing system that proportionally multiply your legs’ force based on the selected assistance level.

01:12 - But how does this translate into battery consumption? Simply put: how much battery will be left after 10. 7km (corresponding to 6 and a half miles)? To answer this, I made 4 tests.

01:25 - In the first two I used the Bafang BBS02B, the 36V 500W version.

01:32 - The e-bike weighs exactly 23. 8Kg WITH the battery mounted on.

01:37 - My weight is 85Kg. I had the exact same ride, the first time just pedaling and one second time throttle only I tried to stay at 25Km/h average speed.

01:49 - To those guys who said “it’s too slow” I would love to ask what’s their AVARAGE, NOT MAX, SPEED in a mixed traffic area, when you have traffic lights, cars, and other bikes around you… After a while, I made “kind-of” the same experiments again, this time using the Tongsheng TSDZ2 36V 500W mid drive kit.

02:11 - To be completely honest and transparent with you guys, I measured the weight of this e-bike too, battery included, and it is 21Kg.

02:20 - In the same way, but with some extra traffic lights, I covered the same exact distance twice: the first time just pedaling and the second one throttle only.

02:28 - In order to measure the battery charge on the Tongsheng kit, I used a voltmeter, while on the Bafang kit I just watched the on-screen volt indicator.

02:37 - In both cases, I used a 36V 15. 6Ah battery, fully charged at 42V at the beginning of each session.

02:45 - And that was the story so far, NOW let’s talk about results! Once again, consider that on the same path, a less-than-500W motor will save more energy, while a greedier one will consume more.

02:58 - With the Bafang kit, in pedal assist mode, we passed from 42V to 39. 6V.

03:05 - Using the throttle only, instead, we went down to 37. 9V. About the Tongsheng kit, I mesured 40V at the end of the pedal assisted ride.

03:17 - Then, at the end of the throttle only ride, the battery was at 38. 6V.

03:23 - This time I decided not to show the values in percentage, because some motors cut off the battery at 32V, some other at 31 or even 30V.

03:33 - In order for me to remain fair, I decided to stick with Volt values and show you a graph instead.

03:39 - Just keep in mind that trying to stay above 34V (around 20% of charge) would be the optimal for a long-lasting battery.

03:46 - So, if you were asking yourselves: “is the Tongsheng 500W mid-drive kit able to beat the Bafang counterpart in term of energy saving with its torque sensing system?” well the answer is, definitely, Yes! And in the same way: “is the Bafang 500W mid-drive kit able to beat the Tongsheng counterpart in term of power, avoiding extra effort on your legs, and with extra speed?” yet again, Yes! So, “which one is the best”? That, my friends, is up to you to decide! Let me know what you think in the comments section down below.

04:20 - If you liked this video, feel free to hit 👍 the LIKE button to support my work! If you haven’t done yet, hit the SUBSCRIBE button with 🔔 the bell icon, so you won’t miss any future video.

04:28 - In the next video, I might have an announcement to share with you, but until that, thanks for watching guys, have a great day and see you on the next one! 👋 [DIIING] [in Italian] Holy $h17…

04:57 - [in Italian] You gotta shut up… SHUT UP!!!.