Lithium vs. Firefly Carbon Foam Batteries?

Answer:

I’d suggest the Lithium makes sense over Firefly if: 

• You need a battery bank that offers the most energy density for available volume and weight
• You plan on using your battery bank regularly, i.e. thousands of cycles, for instance cruising offshore and cycling the batteries every day for 5-7 years
• You are OK with the costs of upgrading your alternator, charger, solar controllers to lithium compatible devices

 All those benefits are potentially offset by large upfront capital costs.  Otherwise, I’d go with Firefly AGM.  – Jeff