Like everything else, the Chinese are flooding the market with super cheap iron phosphate lithium batteries. I saw a 20 Ah battery with charger on Amazon for around $50(!). Please know that my Blowbox and Blowbox TWIN models can internally accommodate batteries up to 6.5 in. x 4.31 in. x 3.3 in. (160 mm x 108 mm x 83 mm), and I can provide connections for most of these inexpensive batteries for use with my coolers.
My only caveat is this: Please use caution when purchasing any lithium battery, especially if you’re planning on using them in a safety-critical environment such as an aircraft. Inexpensive batteries often use cheap cells and have no protection circuitry, unlike the Bioenno Power units I offer. I would not put an sketchy battery in my $200K plane : )
Bob
