12-03-2015, 03:43 AM
(12-02-2015, 10:59 AM)rbike_imp Wrote: I've been meaning to get a post in here, but have been tied up for a few days. My company manufactures _____ (keeping in the rules) plus I have a ____ background and I know a few things regarding this specific subject.
Quick background, AGM (absorb Glass Mat ) batteries are basically Pb (lead) inside an H2SO4 (Sulphuric Acid Bath) causing electron flow. The difference with AGM batteries is that their acid bath is more "solidified" throughout a fiberglass mat type of material instead of being in a liquid version like the basic wet cell car or mc type battery. They last 3 times longer and are apx. 2 times the price for the same basic specifications. Little to no maintenance and leak free.
Now Lithium - too much to say here, but in a nutshell - Not Ready for Prime Time. The theory is great, but the practical implementation results in serious accidents waiting to happen. The big problem is a run away thermal chemical reaction that can not be stopped once initiated - think of the "China Syndrome", but on a much smaller scale.
In very large battery banks (not the original purpose) the supposed performance gains have to be measured against their 10 times the price and severe safety issues. To induce this risk on your mc, is not something to be taken lightly - and for what reason? For cell phones, laptops, ... , but things life dependent or really Expensive, the risk (non-existent or slight as some may think) is not worth it - IMPB.
I have a FAQ weblink regarding this subject matter should you decide to view it here (http://www.zrd.com/faq/esdfaqhlw.html).
AGM batteries are sealed allowing only gas to vent out if being overcharged, otherwise they never need to be touched. Because they are sealed, they can not be "cured" if damaged, but normal use (big variable here) should give many years of trouble free operation and there is never a spill or need to check the "water" level. It also does not hide its condition and fail out of no where without warnings. With a simple $19.95 carbon pile battery tester from companies like Harbor Freight, you will know many months in advance if your battery is getting old and should be monitored for replacement.
Should anyone want to take this offline, send me a PM. 'hope this helps vs. adds to the confusion.
These batteries have been in use for over a decade. LiFePO4 batteries are not LiCoO2; everything lithium is not the same. These batteries are MUCH less susceptible to overheating/explosion due to the difference in chemistry.
While not proof of anything, I've had a LiFePO4 battery in one of my motorcycles for the past four years or so and I've charged it with simple Pb chargers as well as a proper balancing charger (and obviously, the bike's charging system) and not a single bad thing has ever happened. Again, anecdotal, obviously.