[RFI] Solar Panel RFI

[Jim Brown]

That's the cost of LiFePO4 chemistry, Ken. Bioenne's batteries include 
the circuitry needed to balance the charge between the multiple cells 
that make up the battery. Those from batteryspace.com, (good people, 
good products) require add-ons to do that.

Offsetting that cost are three very important factors. 1) Ham 
transceivers produce significantly less IMD (reduced key clicks) at 
higher DC supply voltage -- they need to be close to 13.8V to be 
cleaner. Terminal voltage of LiFePO4 chemistry stays above 13V for most 
of its discharge curve, above 12.5V for the last 20%. Terminal voltage 
of Lead acid is below 12V for more than half of its discharge curve.

2) LiFePO4 batteries are good for about 5X the charge/discharge cycles 
of lead/acid batteries. That means they'll last 5X longer. I've had to 
replace lead-acid batteries every few years because their capacity falls 
off a lot.

3) LiFePO4 batteries have about 1/3 the weight and volume of lead-acid 
batteries with the same Ah capacity.

73, Jim K9YC

On Fri,8/12/2016 11:10 AM, Kenneth G. Gordon wrote:
>> A 100Ah battery from Bioenne Power. Not cheap.
> At $862 each, and over $950 with their noisy charger, most certainly not.
>
> Sheesh...:-(
>