Quote:
Originally Posted by brandonwilcox
I will post the other graphs and videos shortly. Here is the information on how we rate our cells. (added to the website shortly)
*Please note this is a cell rating, as you know Deans and Traxxas connectors can only handle around 70 amps continious.
Our 150C Packs
150C - Maximum burst rating without swelling or damaging the cell. This is a 1 second burst.
100C - Maximum sustained burst rating without swelling or damaging the cell. This is a 10 second burst.
75C - This is the continious rating that the cell can handle through the full discharge without swelling or damaging the cell.
|
Why am I not suprized. So actually they are 75C cont / 150C burst @ 1 second. But wait, on the website it says:
Quote:
Ultimate "Race Edition" 1/8 scale hard case pack. As you racers know, the most important factor for your batteries is voltage under load. This lipo pack boasts a 150C rating for all your amp hungry racing setups. It will maintain higher voltage under load than any other lipo battery pack we've tested. Plus, you'll have no problem getting plenty of runtime with an industry leading 6500mah of capacity.
ROAR APPROVAL PENDING
3-year 300-cycle guarantee
6500mah capacity
4-cell 14.8 volts
True 150C rating
5C fast charge capable
100% waterproof
Hard outer case
Built today with factory fresh cells
Built with genuine 12awg Deans Ultra wire
We add the connectors and balancing taps for you
139mm x 47mm x 51.5mm, 676g
|
No mention of continuous or burst ratings, just 'True 150C rating'; that implies 150C continuous without any other info being offered. You're the marketing rep right? Is it standard practice for MA to mislead customers with totally false ratings ( ofcourse it is, been around too long to know or think otherwise... ), or to simply leave out the rather important fact that that 150C rating is for a 1 second burst- god knows what the voltage droops to under that kind of load.
7.7C discharge graph is just
too.
Funny thing about the starting dragster engines coment- I've seen A123 cell packs used to start motorbike dragster engines and those cells are only 2300mah 30/60C, terrible voltage drop underload yet they got the engine turning over just fine- right until the wiring on the bike started to smoke ( ignition was left off so the engine didnt actually start, just kept turning it over for several minutes ). I've also seen a normal 6s lipo start a 4x4 pickup engine by jumping it to the 12v batt which was flat; nothing short of a very impressive discharge graph with video or photographic proof of the readings from the discharge apparatus will change mine or many other people's opinions of MA.
