Search results

Curious. When you ordered for around $110, there was free shipping. Now it is around $160. You claimed to have a worthless battery, and got a full refund. So you have a 'terd' battery that cost you $0, but is perfectly useable, and you are griping about quality control? I see good battery deals...

If you want a single pack, maybe to just build an ebike, I'm not sure building is cost effective. There is a learning curve. Micah Toll has good videos and a good book. Tom at Battery Hookup has those 20p modules of the 32700 cells. I assume he gets them from a jobber, but he might own an...

I think ebikes are in the Bubble stage, but with all the money people are imagining they are making on their houses, it will continue. I’m going to sell my house and live in a box, but I haven’t found the box I want yet. I think that ebikes will go back to a better mix of manufactured and DIY...

It's one thing to buy an iphone, another to buy a huge SUV or truck with the biggest battery you can get. There is something of a choice there.

I'm sorry. It's just not an 8 lb penalty. I use 6 AH cells but they are lower voltage. If you take 16 of them, you get pack that is fully charged at 58 volts or so. So it's a higher voltage than a 48 volt pack, and the LFP holds the voltage better. So there are more watts or watt hours, but you...

The only ebike I've run across that advertises, even boasts, of UL certification is Ecotric. This a very low price Chinese ebike company, so if you think UL certification is a big deal, you may be deluding yourself. I think they offered a UL and a non-UL and it was maybe $25 difference. It's...

The Chinese started producing the 21700 cell in 2017. I reviewed a Liito Kala pack with 21700 cells in the Spring, on this site. It was 13 ah and around $100. The same basic pack is on Ebay now for $230, something like that. It's not a brand you can embrace. But I have 100 cycles on the pack...

Legal. You had to say legal. No, I don't see what you can do. I looked into it a while back, to sell a commercial 48v pack. I can't imagine the shippers taking the package if you are honest. In the old days, I used to get LiPO hobby cells (from the King) and they came Priority, in a box with no...

If the sun is out, and it's fairly warm, I use a Boost MPPT solar charger that comes out of China. You can set the voltage, so you don't have to do a full charge. I use 56v for my LFP packs, 53 for the standard cells. I have a couple of these units. Some were $30. They will handle 300 watts, but...

It’s very confusing. I remember looking at replacement batteries for my ebike in 2014. It was like $900 with the shipping. So I looked around and found the hobby lithium, Lithium Polymer. People said they were very unsafe. They didn’t have any BMS or anything like that, just balance leads...

That's a very reasonable amount of money to spend, and it looks nice to me. So the controller box is on the end, in the third picture. Interesting the way they did that. It does sort of show that a lot of ebikes can be adapted, often pretty simply. Down the road, there are other front hubs and...

It's interesting how difficult it is for Pedego to actually service its large dealer network. It's confusing that Lectric, which sells a lot of ebikes, has been 'in stock'. But that may be because their ebikes are basic. So the more you drift up the parts scale, the harder it is to find the...

This video shows a 16 inch motorcycle tire fitted to the XP 2.0. I like the idea, but don't know much about it. He did a follow up.

I was looking at the Bolton stuff. It's clear that you can use any (check voltage, etc) battery you want with most ebikes if you tap the wires to the controller. The normal DIY battery has red and black output wires, and you match that to the controller. I don't access the controller. The...

Possibilities: 1) could be two batteries that are weak, seems unlikely 2) could be a charger set to stop charging too soon, like 50v instead of 54v 3) could be a BMS that is shutting off at 46 volts instead of 42 volts (LVC) 4) if the motor is using a lot of amps, the motor would be hot 5)...

Something is sort of messed up. If you have a 13ah pack, that's around 600 wh, and you are getting maybe 9 miles. So that's 65 wh per mile. I go 25 mph and use 25 wh. In other words, that one battery, at 15 mph, would normally be good for 20 miles, at slow speeds. The trike is a little less...

Do you have a link to the batteries? Just the general info like how high quality it might be, the amp hour rating. You could also link to the motor. Are these lithium batteries, or lead acid? If you are going slow it's probably not a big deal to find a decent battery that will get you 25...

Fat tire bikes use more power If you go fast, you use more power per mile, wh per mile If you never pedal you use max battery There are no 1000 watt batteries. There are 1000 watt controllers, and 1000 wh batteries How fast do you go? How many amp hours are the batteries you have. How far do...

So... 1) We don't know how many fires there are, what the true failure rate is. Most fires may be without consequence. 2) We don't know what fails. Basically, there is a short circuit and thermal runaway, but that percent is that? 3) There are lithium packs in my robovac, my toothbrush, my...

EV fires have been a problem, notably for GM. The thing is, Tesla is shifting to LFP for the lower end Tesla models. It's much less combustible, very difficult to ignite. I actually owned an ebike with an LFP battery, a Prodeco, years ago. I have made two LFP packs, and they hold their voltage...