I have no hard data on other branded batteries, yet, but will soon, and as with Shorai, will let the pieces fall where they may. This cracked me up from Ballistics FAQ "Why are Ballistic Performance Components batteries different from other lithium based batteries? The Ballistic Performance Components EVO2 battery uses custom made cells, cases, and connectors that are made specifically for the purpose of starting powersports vehicles. This is not a collection of generic commercially available parts wrapped in shrink wrap. This is a purpose built product designed, engineered, and assembled in the USA by an American company with over 20 years of professional motorcycle racing and manufacturing experience. We have made significant investments in materials, production capacity, and engineering that allow us to sell a lighter, smaller, more powerful battery at a better price and at the same time offering an exceptional 3 year warranty." If this is not a direct jab at Shorai, I don't know what is. Note also, ACTUAL amp hour to ACTUAL amp hour, Ballistic batteries are cheaper then Shorai. Also from Ballistic FAQ: "How do you compare lithium amp/hour and cold cranking amp ratings to traditional lead acid ratings? Ballistic Performance Components batteries are designed to be starter batteries. Lithium Ferrous Phosphate technology works really well as a starter battery because it is able to deliver a large amount of energy in a short period of time and then recover. This is why they can be made so much smaller and lighter than the lead-acid equivalent. Lead-acid battery manufacturers have been using Amp-Hour (Ahr) ratings for years to indicate the cranking ability of their batteries. The Amp-Hour rating is a measure of how long a battery can deliver a specific current over the course of 60 minutes at a low discharge rate to half of nominal voltage. This rating has little to do with how a battery will actually start a vehicle. Because the rating itself is based on a complete discharge, under actual conditions the lead acid battery will deliver much less than the amp-hour rating. As a lead-acid battery discharges it begins to sulfate and its internal resistance increases. Also, discharging any battery to a complete discharge will damage it permanently. A Ballistic Performance Components EVO2 battery will operate completely different. EVO2 batteries have significantly less internal resistance so they are able to discharge more of their capacity in a burst and still remain usable. Because the usable capacity is much greater than an equivalent lead-acid, a 6.9Ahr 12 Cell EVO2 is on par with a 20AHr lead acid battery in actual performance as a starter battery. To illustrate this, we use the rating of Pb-eq A/Hr or lead (Pb) equivalent (eq) Amp Hour (A/Hr). The lead acid equivalent amp/hour rating is a simple way to compare the starting capacity of a LiFePO4 battery with the starting capacity of a lead-acid battery. Cold cranking amp (CCA) ratings for lead-acid batteries are a bit deceiving as well. CCA specs are based on amps delivered at zero degrees Fahrenheit at half nominal voltage (14.4V). This isnt a very useful rating as 7.2volts will not start a vehicle. What really starts a vehicle is current multiplied by available voltage (Watts). Once again, because a EVO2 has so much less internal resistance it is able to deliver more voltage for a given amp draw, and thus more usable starting power. All batteries start to lose performance below 32ºF (0ºC), and LiFePO4 batteries tend to fall off more dramatically. When the temperature of the EVO2 goes below 32ºF (0ºC) internal resistance starts to build in the battery and the amount of available amperage goes down as well. This should lower the Cold Cranking Amp rating, correct? No. LiFePO4 batteries have the ability to build their own internal heat energy when a draw is put on the battery. This means that although if may be 0ºF (-18ºC) outside, the battery has the ability to raise its internal temperature to 58ºF (14ºC) in seconds with a 100amp draw. As the temperature rises inside the battery, internal resistance lowers and the battery performs just like it does when it is 60ºF (15ºC) outside. This means that the amount of available amperage does not change based on temperature." I need to get my hands on one of these batteries, but this seems closer to inaccurate rather then the down right dirty lies on Shorais FAQ. True amp hour is at least listed and explanations are at least plausible. Read for yourself Ballistic FAQ Heres an excerpt from AntiGravities FAQ: "As an example of the power to size ratio of the Antigravity Battery Power Cell vs Prismatic Cell . A Prismatic Lifepo 18 amp hour (PbEq) battery puts out 220 Cold Cranking Amps Our 16-cell is a 16 amp hour (PbEq) yet puts out an incredible 480 Cold Cranking Amps DOUBLE the power of the Prismatic, yet amazingly is smaller than the Prismatic .This battery can turn over the Big V-Twins like 135 cubic inch high compression motors, where the larger Prismatic will fail to get past the compression stroke. We always go for POWER first and foremost and we trump all other batteries in this area." The CCA ratings, we will see. Honestly, i'll give any company a pass if their battery will create usable voltage at the CCA current level for at least 10 seconds which Shorai will not, but at least here we see a somewhat reasonable Amp Hour PBEQ Shorai is trying to say that a 6 amp hour LiFePO4 prismatic is equivalent to 18 amp hour lead/acid Ballistic is trying to say 6.9 amp hour cylindrical LiFePO4 is equivalent to 20 amp hour lead/acid Antigravity is only saying that a 10.2 amp hour cylindrical LiFePO4 is equivalent to 15 amp hour lead/acid This approaches believable. Lead/acid Amp Hour is usually specified at a 10 hour rate. If you draw more then 1/10th of the batteries capacity per hour, the chemistry in a lead acid battery can't keep up and the voltage will fall on its nose before you get the full amp hour rating out. The capacity isn't actually lost, that is, if you stop drawing current for a few hours, the chemistry will catch up and you will get back the remainder, but it certainly becomes inaccessible for a while. This is SUPPOSED to be less of the case with LiFePO4 chemistry, so I will give Antigravity a pass because under some foreseeable conditions, a 10.2 AH LiFePO4 really will have as much usable capacity as a quality 15 AH lead/acid. But 18 AH from a 6 AH battery or 20 AH from a 6.9 AH battery, thats pure hyperbole Shorai and Ballistic. Never the less, most of the rest of Ballistics FAQ is more reasonable and informative so I will approach their battery with an open mind. I would truly LIKE to like one of these brands because I want more CCA AND AH then will fit in my Capos battery tray with lead/acid chemistry. Without further ado, here is the raw video. Well not totally raw, I did ket out the drying paint sections and ad nifty labels and even fades But the figures are the straight juice, you can watch as I log them. <object width="853" height="480"><param name="movie" value="http://www.youtube.com/v/ySNbSZTgplA?version=3&hl=en_US&rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/ySNbSZTgplA?version=3&hl=en_US&rel=0" type="application/x-shockwave-flash" width="853" height="480" allowscriptaccess="always" allowfullscreen="true"></embed></object> Once I have a Ballistic and AntiGravity battery test, I will run it through exactly the same tests and if it passes, proceed to cold weather tests. I don't think I will post the Shorai melt down video as some people will needlessly use it against the chemistry as a whole. In any case, it was not a "thermal event" as the industry calls it. No flames and not that much heat, but OMG take it from me, the smoke cloud was EPIC! It dumped half of it's smoke in my house as I evacuated the dogs and turtle and STILL once I carried it out side made a big enough white header to get a passing firetruck to turn down my residential street to see what was up. I'm not exaggerating. That Shorai was the smoke bomb from hell! As always, if anyone has questions, suggestions, or thinks I am being unfair, speak up.