Recent content by jorhyne1

Yes but how many cell phone manufacturers can offer the iPhone OS on their phones? 1. Android can be used by any cell manufacturer who wishes to use it, increasing the openness of the OS.

What made you decide to go with the LiFeMnO4 batteries over Thunderskys?

Try using Google Forms, it would let you set up a simple form for customers to put in their information and you can easily embed the form on websites.

Most second-hand Zivans were initially used for lead acid setups. The charger is not user programmable so in order to make one work for Lifepo4 you must ship it back to them and they will reset the charger to the correct charger profile (for a tidy fee of course). If you buy new I think you can...

The BMS shouldn't produce any measurable heat when you are actually operating the bike..all of the balancing (i.e. heat being generated via resistors) occurs when you are charging. Unless I'm completely wrong, which I have been before :lol:

Have you tried emailing ecitypower? They normally respond very quickly to most queries.

Please go to the page before this one and read Gary's (GGoodrum) post. He already addressed your question. Forum member AndyH runs rechargeablelithiumpower.com which sells the current version of this BMS and will offer a completed version of 4.0 when it is ready.

Thanks for the fast responses guys. The BMSs you have designed are fantastic and are a great service to not only the ebikers out there but electric motorcyclers and car guys too! I hope you guys are being properly compensated :wink: for your work! One more question though, what is the ideal...

What is the exact voltage that shunting ocurrs? 3.65v? So if I'm charging a 48 cell pack, it would be better to set up the charger to output 3.7 or 3.8 volts/cell to charge fully? So that would mean I would set the charger to 177.6ish instead of 175.2 (24*3.65)?

I have a quick question..I am planning to use this BMS with a large lifepo4 pack. I will be using this charger: http://www.bmsbattery.com/product_info.php?products_id=111&osCsid=2726a892cc5a75adbe3f1f57c9f3edd7 Data sheet here...

Are those the new cells that Liveforphysics recommended to you? If so are you going to try to parallel them with the Thunderskys? I'd be very interested to hear about your results.

You will most likely be able to buy a completed version (once the updated BMS is released) from rechargeablelithiumpower.com , they sell the most recent version completed from $120-$220 depending on how many cells you need to manage.

EVComponents has much better prices on Thundersky batteries compared to Elite Power Solutions. I'm not associated with them but they have a good reputation and offer a good prices.

I would buy one and know LOTS of people who would also want one, has anyone contacted the company that produces them to see if they would be interested in building the?

You should use 3.2 volts as determining your pack voltage, as that is where the voltage will drop to once you actually put any kind of load on your batteries. However most people will recommend you charging thunderskys to 3.7 or 3.8 volts/battery, so if your controller cuts off at 84 volts the...