Recent content by StevenR

Ping is all good. I have a 48V20aH v3 (unadvertised but available if you ask). 5000 miles in 18 months and still over spec. I have abused it badly with the 60 amp BMS tripping frequently when I drive a 5303 with one of methods monster controllers. I usually run a 48V40A controller with no BMS...

I considered an i-something but decided against it. I went with an Archos 5IT. It is Android so the development environment is free (Eclipse) and the apps martketplace is completely open. It has GPS, WiFi, Bluetooth, PMP and FM Radio. I got a Bluetooth receiver for my helmet (Giro Revolver...

I bought a Motobecane hardtail at bikesdirect.com for my 5303 rear disk motor. I would like steel but it is probably out of the question as getting the complete bike and just mounting the motor is way cheaper and easier than building it up. Here's a $399 disk brake frame of similiar...

I hate to add more potential confusion, but the cells being offered by cellman (I think they are still offered - I can't find the sale thread - here's some info http://www.endless-sphere.com/forums/viewtopic.php?f=14&t=15408) outperform just about anything. Cost may be a bit higher - $2.00/aH -...

I will make a quick post then update it later to keep to the one post per person idea. I soon will have three complete systems with all interchangeable parts so documenting all the possible combinations is unlikely - although putting some numbers to a 5303 Front/5303 Rear powered by a 120V of...

I just kicked in $25 as what I consider buy in to the discussion. I'm the one that made the "I don't care if you use it to support your crack habit" comment, to distinguish it from the other $25 contributions. Those who aren't going to contribute under any circumstances should probably just...

I'll have to try the deep stuff. I have 26" Schwalbe Ice Spiker Pro's on a disk brake motobecane front-suspension 5303 rear/48V35A Clyte controller/48V20aH Ping v3. I have put 200 miles+ (300? I have to look) with spikes but have not gone out on the roads when it was much deeper than three or...

I am pretty sure ebikes.ca will ship just about anywhere in the world and have 9C and Crystalyte motors - I just ordered a 9C five turn motor on a 26" MTB rim. Get a 48V35A 12FET controller and hot-rod it a little bit - there are several available on the forum all set to go. Contact Ping and ask...

...Oh yeah. It also charges each cell at the lowest possible rate so that it just reaches full charge when I need to use it again. It will know when I need it again by using bidrectional brainwave communications...

Just found the thread and have read it without hitting much of Jack's stuff external to the forum but will do so but I just want to say that I agree with everybody. It seems to me that Jack's premise, which is valid when not arguing with other valid perspectives, is that counting the power in...

I have a 48V20aH Ping v3 with the 60A BMS. I am using a 5V Ping aluminum case charger set to go Constant Voltage (CV) at 60.22V. It may take several hours after the LED's light up for the charging current to drop down to less than 100mA where I consider the battery to be balanced. Cell...

I got 1100wh measured by CA and have gotten there on several occasions. The CA power delivered wh matches the recharge wh measured by two different wattsup meters within about 2% (+ or -, mostly depending on when you call it charged - it will "charge" at 0.09A forever) every time. That should...

engadget has a story on a fuel cell for RC Cars... http://www.engadget.com/2010/02/03/horizon-debuts-h-cell-2-0-hydrogen-fuel-cell-system-for-r-c-cars/ It makes an RC car go 50mph for 45 minutes. "Hydrogen is stored in a metal matrix". It is called a hybrid so it sounds like it has a battery...

...continuing because the editor goes wacko after a certain number of lines... I think the Ping v3 is still the leader in established non-vaporware. The new cells by the manufacturer we shall not name for sale here... http://www.endless-sphere.com/forums/viewtopic.php?f=9&t=14832 ...kick all...

replyt to liveforphysics IMHO... The list is not quite right or complete, depending how you look at it. The volume is not the variable of concern (within reason), it is mass - pounds(kg)/wh. At a certain capacity the power issues - instantaneous watts - are really moot. I get by nice on 80A...