toller - To clarify a little more, you are correct that Iron Phosphate is classified under the "Lithium" family but if you compare Iron Phosphate to Lithium-Ion (chemistry and attributes) they are opposite ends of the spectrum. For example Lithium-Ion has a HUGE problem heat, Not only does it create a ton of heat but it also can not manage it's heat properly, thus causing a thermal runaway which leads to smoking, fires, and/or explosions (ie. hoverboards, cell phones, laptops, etc.). Iron Phosphate on the other hand creates virtually no heat whatever no matter how hard the battery is used or charged. That is only one example of the many differences but if you would like to learn about more of them, feel free to ask.
While we are still clarifying, the BYD forklift does NOT need to be charged for 20 minutes to gain power back to the forklift, in fact the minute you plug into the charger you start putting power back into the battery. The rule of thumb is for every one minute of charging you receive one percent of battery power back in the battery.
Last point of clarification (I promise), once again you are correct that Wal-Mart, Kroger, Sysco and others have done hydrogen at some of their facilities BUT it is also important to acknowledge that many of installs/setups happened not because hydrogen is the superior solution but instead because the federal government was giving away many incentives and tax credits making it difficult for those "good accountants" not to bite. The bad news is all of these incentives expired December 31, 2016 and the discussion for new incentives seems to have fizzled out. Around 2010-2011 (when hydrogen still sounded like a good idea) it was widely projected that by 2020 there would be over 5,000 hydrogen fueling stations throughout the US for cars, buses, forklifts, etc., sadly as of today the US department of energy's website only lists 33 fueling stations still in operation and only 3 of them are outside of California. On the other hand there is 15,297 electric fueling stations throughout the US. As someone else stated in an earlier post, there was a day when hydrogen sounded like the way of the future, unfortunately that was 2011 and the tide has changed.