Justin,
Thanks for that great info. I have the same battery and it performs great. I can¡¯t remember about the PowerMax (sp) but I think you still need a charge controller between the solar panels and the battery that works w/ LiFePO4 batteries. I bought the one Powerwerx sells along with the Bioenno batteries and charger.
Also if you do not want to wait on PowerSaver/PowerMax (Can¡¯t remember their name) some knock off brands of 60w panels perform adequately and do not seem to produce any noise.
For your 991 if you are not looking to take the 30 Amphr battery portable consider a SLA gel cell of Deep Cycle RV/Marine battery. They are less expensive than LiFePO4 batteries. Of course they heavy as rocks but if you aren¡¯t moving them once in place the weight is almost irrelevant. If you are looking to use it portable definitely go with theLiFePO4.
That is what I do, LiFEPO4 for portable ops, SLA gel batteries for emergency backup in the shack.
Brian
K0FBS
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Brian
K0FBS
Brian Smith