dnmun wrote:Meth Tek is not what you want on the letterhead.
you should consult with someone who really knows where your liability ends if you sell product in the US. make sure you put yourself and property into an LLC too.
The packs will be "Experimental" and I dont have the least bit of concern about liability.
methods = fearless.
The only thing I fear are the crooks in government who charge $900 / year just to have an LLC in California... else I would have one.
Andje wrote:methods, i just want to point out that as a canadian, we STILL don't have a good source of HK batts available beyond ordering from China or shipping to a border PO office from a US HK warehouse and driving across. I would be interested; there is definitively an oportunity to set a new standard. I would think that Justin might also be interested.
Unfortunately I dont think that is going to change. No way can I ship lithium batteries through customs - just wont happen. I also dont think Justin would be interested - he needs plug and play with a BMS that can actively cut charge/discharge internally to the pack. These will be packs for gangsters.
The Mighty Volt wrote:Meth Kills.
Meth does a body good!
miuan wrote:Methods, I believe this is an attractive opportunity for many.
But! Be aware that many may also be put away by the lipo price since purchasing 4S hardcases has been much more economical.
Sure, they're sold out for the moment you may argue, but why not just source these for your future builds in the first place?
It's easy to remove the case, inspect the cells and build the pack just like with any other soft pack.
Genuinely interested in your opinion.
Actually I don't really follow your logic. The most likely place that a pack will fail is in the external wiring. Using 4S packs just creates more of that wiring. Just to make a 20S 10Ah pack you would need to hodge 10 of those packs together (compared to 6 x 6S packs for 18S 10Ah - almost double the connections) . All those series and parallel connections is where the problems will crop up. As far as any benefit from having them in a hard case... yea, I suppose they are less likely to get punctured but they are more likely to experience some sort of shorting in the external wiring so I don't really know what you gain.
I promote using the largest building blocks you can to reduce the amount of external wiring that needs to be done.
nicobie wrote:dnmun's reply might be a bit blunt, but he does have a point about the LLC. It really depends on your financial circumstances.
Personally, I think you are on to something. I couldn't count how many times I've read posts asking for a turn key lipo pack. Your new battery monitor now makes it possible. Arlo made a good point too.
Any time I hear people talking about liability what I hear is "well meaning alarmist". No disrespect to dnmun - I realize that he is well meaning in his warning - but we are here on the cutting edge of technology trying to push the envelope. I dont have time to worry about bullshit - especially not Lawyers, politicians, patent trolls, or sue-happy money grubbers. I am a true-blue engineer so I dont have two red cents to rub together
If anybody plans on bringing a lawsuit against me they better be ready to pay their own court fees because I am a broke-ass hillbilly.
Think about how dangerous a chainsaw is, an automobile, a gun...... an outboard boat motor, car battery, or anything else. Life is dangerous - people need to quit depending on the lawyers and government to protect them and start protecting themselves
Best protection a man can buy is an education.
Increasing battery voltage and controller current limit will result in a non linear experience