Search found 2772 matches

by Sunder
Aug 13 2019 7:02pm
Forum: E-Bike General Discussion
Topic: Sur ron advice AUSTRALIA
Replies: 10
Views: 778

Re: Sur ron advice AUSTRALIA

Not encouraging anything, but I wonder how they restricted the speed, and if it's reversible. Unless you were acting like a tool, there's no way police would know you had a 45km/h speed limit unless they had a reason to check your rego. That said, motorbikes are usually marked Mopeds because of unco...
by Sunder
Aug 13 2019 6:54pm
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5440
Views: 408086

Re: new eZip motor

I don't think any off the shelf bike rack would hold 120lbs. They're usually secured to the rear hanger, which isn't designed to hold that kind of weight. I could be wrong though, because bike pegs do exist, and they are designed for teens who could hit that weight, but not my area of expertise. You...
by Sunder
Aug 12 2019 4:54pm
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5440
Views: 408086

Re: new eZip motor

The end of an era, hey... That's sad, but I understand. I think you're wrong in one sense, but right in another. Ebikes are before their time. They are not practical - Yet. It's like taking that high tech 11:1 compression, high revving motor with a hybrid system back to the 1960s. It's superior to t...
by Sunder
Aug 11 2019 4:38pm
Forum: E-Bike General Discussion
Topic: Quality 60v inverter
Replies: 13
Views: 172

Re: Quality 60v inverter

Inverters designed yo take more than 48v nominal tend to be pretty expensive, because as someone else pointed out, they are usually for solar storage applications and need to meet certification, even if they don't have them. Easier answer for such small power is just to step down to 12v and use a co...
by Sunder
Aug 10 2019 2:05am
Forum: E-Bike General Discussion
Topic: Sur ron advice AUSTRALIA
Replies: 10
Views: 778

Re: Sur ron advice AUSTRALIA

I saw that, but it said something like "Road legal under 45km/h", so is that like a special moped classification or something? Never seen a road legal bike with a speed limit condition before. Can't imagine taking a 45kmh bike on even a 50kmh road. Eventually you'd get an idiot running you off the r...
by Sunder
Aug 07 2019 12:27am
Forum: Items for Sale - New
Topic: 2.35v 11ah nos boxes of 12 cells
Replies: 24
Views: 3351

Re: 2.35v 11ah nos boxes of 12 cells

These are ideal for car audio. In fact, some people use them instead of lead + super capacitor for car audio - Better density than lead, and can deliver the very bursty power without actually needing the big AH (Unless the reason you need big AH, is not to deliver high power, but to deliver high pow...
by Sunder
Aug 05 2019 7:44am
Forum: Battery Technology
Topic: Charging battery faster
Replies: 88
Views: 2176

Re: Charging battery faster

All that just to sign a no risk contract? You're not sounding real sure of yourself...
by Sunder
Aug 01 2019 7:10pm
Forum: Battery Technology
Topic: Charging battery faster
Replies: 88
Views: 2176

Re: Charging battery faster

even in japan there is only 1 dealership that sell them officially. there is no consumer product for sale you can buy that has LTO batteries. You just contradicted yourself. This thread is comedy gold. Yeah. It is pretty much where I thought it would go. Flippy makes an erroneous statement, and mak...
by Sunder
Jul 30 2019 6:44pm
Forum: Battery Technology
Topic: Charging battery faster
Replies: 88
Views: 2176

Re: Charging battery faster

you try walking to your local honda or mitsubishi dealship and try and buy a car with a LTO battery. good luck with that.... There are definitely grey import iMievs for sale here in Aus that had the LTO cells in them. None right now but I guess it doesn't matter. Even when you're wrong, you're righ...
by Sunder
Jul 29 2019 11:13pm
Forum: Battery Technology
Topic: Charging battery faster
Replies: 88
Views: 2176

Re: Charging battery faster

s there where trolls come when out from under the bridge or what?! fat tire I challenge you to tell me what the hell youre going on about. I was a bit perplexed by this thread, especially: name one consumer product that uses them. even if you can find a single consumer product then my conclusion st...
by Sunder
Jul 11 2019 3:01am
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5440
Views: 408086

Re: new eZip motor

My parents were sued by an old lady who claimed she tripped in front of our property. On advice of a lawyer, my parents offered her medical costs and one year of in home assistance to avoid a law suit. Came to about 100k aud, maybe about 70k USD equivalent. She refused and put in a claim for 1.3 mil...
by Sunder
Jul 09 2019 5:31pm
Forum: General Discussion
Topic: The 2 types of type 2 diabetes explained and how to reverse - page 3 and scientific studies prove it!
Replies: 68
Views: 1881

Re: The 2 types of type 2 diabetes explained and how to reverse - page 2 - great video with details

Back to the topic How to reverse diabetes: https://www.youtube.com/watch?v=F4UhVInyfoY i just bought 12# of bananas, 7 mangoes, 2# cherries and grapes too. see how this works in the video, with scientific studies 8) I don't usually use "Ad hominem" attacks on people, preferring to discuss the idea ...
by Sunder
Jul 07 2019 5:02pm
Forum: General Discussion
Topic: The 2 types of type 2 diabetes explained and how to reverse - page 3 and scientific studies prove it!
Replies: 68
Views: 1881

Re: Americans have the most expensive urine in the world!

Sunder, Only the liver can metabolise fructose. That's why it's so harmful. Every other tissue in the body can use glucose and indeed muscles run best on it (but not as much as you'd think). Consumption of fructose causes fat around the liver because of this, which is a large part of insulin insens...
by Sunder
Jul 06 2019 3:20am
Forum: General Discussion
Topic: The 2 types of type 2 diabetes explained and how to reverse - page 3 and scientific studies prove it!
Replies: 68
Views: 1881

Re: Americans have the most expensive urine in the world!

Speaking of the opposite case, there are people who cannot metabolize fat or cholesterol. These people's blood typically looks like this: Funny you should mention that, recently there was some research that suggested that just like your insulin response determines your glucose clearance rate, there...
by Sunder
Jul 05 2019 7:50pm
Forum: Alternative Energy
Topic: Revolutionary Air Conditioner!
Replies: 7
Views: 436

Re: Revolutionary Air Conditioner!

Does anyone know if there are written step by step instructions for this video?

Watching it to get an idea is one thing, using it as an assembly guide is another. I guess I could always transcribe the instructions.
by Sunder
Jul 05 2019 3:35am
Forum: Alternative Energy
Topic: Revolutionary Air Conditioner!
Replies: 7
Views: 436

Re: Revolutionary Air Conditioner!

I was wondering if he was going to address the energy input of the gas heater. The idea looks sound, whether it scales, or is commercially viable, is another matter. I wonder if we will see these models available for sale in a year or two. I suspect if it required regular maintenance, it won't be th...
by Sunder
Jul 04 2019 11:35pm
Forum: Alternative Energy
Topic: I bit the bullet - Grid Tie Backup Solar Coming Soon
Replies: 2
Views: 125

Re: I bit the bullet - Grid Tie Backup Solar Coming Soon

Sales person said it can take any voltage battery up to 1000v, but current is limited to 17A. I'm thinking maybe a 150V battery, like my motorcycle. That's 2.5kw, that should be enough for running night time stuff. Our air conditioners are 600W each, gas oven, gas hot water. Couldn't use anything el...
by Sunder
Jul 04 2019 8:52pm
Forum: Alternative Energy
Topic: I bit the bullet - Grid Tie Backup Solar Coming Soon
Replies: 2
Views: 125

I bit the bullet - Grid Tie Backup Solar Coming Soon

I've just ordered a 5.5kw Solar install for my house. 16 x 345W LG Neon 2 Panels, 16 Panel Optimisers (I live in a very green area, so lots of trees) Solar Edge 5kw Backup Inverter (Built in Battery Charger/Inverter) I will probably put 2-3kwh of batteries under the house, to store excess energy for...
by Sunder
Jun 30 2019 8:05am
Forum: E-Bike General Discussion
Topic: Optimal charging for batteries
Replies: 18
Views: 552

Re: Optimal charging for batteries

Yes. You can feel that curve on the discharge side too. Go full throttle when the battery is full, and the voltage might only sag 2-4v (on a well designed 48v system). Try to do the same when the battery is less than 50% and it might drop 10v to trigger off LVC, even though you still have 50% capaci...
by Sunder
Jun 30 2019 7:29am
Forum: E-Bike General Discussion
Topic: Optimal charging for batteries
Replies: 18
Views: 552

Re: Optimal charging for batteries

Is that done programmatically, or because of the way CCCV works? Once it hits constant voltage, of course the current falls.

Or are you talking lead acid smart chargers? The do it programmatically to avoid off-gassing.
by Sunder
Jun 30 2019 4:55am
Forum: E-Bike General Discussion
Topic: Optimal charging for batteries
Replies: 18
Views: 552

Re: Optimal charging for batteries

In any case, I dont expect any disaster buying the LiGo batteries as they seem to be well protected. However my original question(s) still remain unanswered, but it seems there's often a conservative answer 1. Is fast charging, even at very low discharge rates, poor for battery cycle life? Phrased ...
by Sunder
Jun 29 2019 11:23pm
Forum: E-Bike General Discussion
Topic: Optimal charging for batteries
Replies: 18
Views: 552

Re: Optimal charging for batteries

Wish i had kept some of the scientific papers people have posted here over time. You're just going to have to take my word for it, or not as your choice. The papers approached the problem from different angles, different chemisties etc, but two things always turned up consistently: 1. Total time at ...
by Sunder
Jun 28 2019 3:56am
Forum: Battery Technology
Topic: Single Use Inrush Limiting Resistor
Replies: 5
Views: 266

Re: Single Use Inrush Limiting Resistor

Okay, nope, I was just looking in the wrong section. Plenty of 5w - 10w rated resistors.

Looks like I will be making up a leave in precharge cable. :)
by Sunder
Jun 27 2019 5:33pm
Forum: Battery Technology
Topic: Single Use Inrush Limiting Resistor
Replies: 5
Views: 266

Re: Single Use Inrush Limiting Resistor

Hmm. Okay, thanks for that. I know 100w was overkill, but all non power resistors at my local are measured in mw, but you're saying its so short it doesn't matter. Thats reassuring to know, but I have a few of those power resistors around anyway, so no loss in using them. I guess a parallel circuit ...
by Sunder
Jun 27 2019 9:07am
Forum: Battery Technology
Topic: Single Use Inrush Limiting Resistor
Replies: 5
Views: 266

Single Use Inrush Limiting Resistor

Hey all, Pretty simple question, but considering the voltages concerned... One I want to be pretty sure of. I will probably be connecting the battery to the controller for the first time soon. As the battery will be 168v, and the controller is a 400A model, I expect there to be rather large capacito...