The Lithium HE batteries have a shorter life but have the
highest energy density which is probably why they have built in fan
cooling. They are incredibly compact batteries and must be the go to
product where weight and volume are most important. Their cost is a bit less
than the Smart batteries but when you factor in the extra expenses involved
with the Lynx Ion BMS it might come out almost the same. The middle
battery above is the longest lasting and the least expensive. The low price just reflects the fact that it is
being discontinued because it was superceeded by the higher performing Lithium HE
The drawing below shows a typical layout for using the Lithium HE and this layout can also be used for the Lithium Ion 24V/180 Ahr battery
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