Recent content by gblast123

can u put a battery pack without a bms in parallel to a battery pack with a bms?

This is incredible.. how prices have come down. 50,000 mAH or 50 Ah for only $15.50 or so. amazing how they can deliver so much in such a small package. Isn't technology amazing...

You can get pre-made xt90 harness for parallel and serial direct from hobbyking. http://www.hobbyking.com/hobbyking/store/RC_PRODUCT_SEARCH.asp?strSearch=xt90+harness makes for a much cleaner install.. 2 or 4 - 6s packs 16 AH should be more than enough for Bafang

OMG, WHAT DID U DO? YOU CAN JUST THROW THAT PACK AWAY NOW.. they dropped below 3.7 v.. they are damaged and unbalanced... If u believe what the others on a similar thread posted, that pack is worthless. I, however, disagree with them with regard IRREPERABLE DAMAGE TO PACKS BY letting these...

one thing I want to clarify. Any state can prohibit the use of bicycles. What the federal statute is designed to do is equalize the electric bike with non-electric bikes. ie, if they allow bicycles, THEY HAVE TO ALLOW eBIKES. They can however, say NO BIKES ALLOWED. Also, what mkeefer says...

Well there was a company that has a 15 lb, 1kw generator, which runs on diesel. http://www.dstarengineering.com/piston-pdfs/Generator_Sets_1kW.pdf Problem is that they do military applications, ie they charge a fortune for screws, let alone screwdrivers. I remember calling them a few years...

I'm not sure why people cannot understand plain english and are simply getting on pulpit trying to show off how much they know. In a forum predicated on scientific principles, there is a tremendous amount of inaccurate breastbeating about what is the "right" way to do things. Quite simply, we...

that is your choice..nothing wrong with that

I agree that it won't push it up far. Do you agree that "IN A PINCH" something is better than nothing?

You have trouble with engrish I see. If you bothered to read it careful, it says. "In a pinch, i can use the regular 24v charger that comes with the mobility scooter to bulk charge the pack up to about 3.7v per cell." I did not say that is was the preferred method was bulk charging.. ie.. "IN...

I guess the difference is that most bms allow lipo's to discharge to at least 3.0v.. in some instances the cut-off is 2.7 v. I agree that if u want to keep the pack alive for the longevitiy, the parameters you indicate would do so. However, there comes a point of diminishing returns.. i...

The problem is his usage of the term "almost empty" Most discharge curves indicate, at moderate drain rates, a voltage of 3.7 gives u about 40% residual capacity when looking at a 3.0v cut-off. This varies with drain rates, temp. etc. I consider "almost empty" to mean less than 10% residual...

I think a look at any Lipo discharge curve would indicate that your statement has little to no merit. But take a look and get back to me on this.

Hobbyking is selling the xt90 "harnesses".. either parallel or serial versions. I ordered a bunch of the parallel versions and will put Andersons on the bottom of the "Y" parallel.. by knocking off the female xt90 portion. http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=63485...

There seem to be 2 potential problems. Most of these say they only work with one voltage, ie either 36 or 48 and you have to specify it in advance. Can u order the 36 v and use it with a 48 volt battery pack? Also, it says that the EABS cannot be disabled... it seems like a function I would...