California buyers frequently encounter these costly mistakes:Prioritizing price over compliance: Non-UL certified packs can cause months-long permitting delays or outright rejection.Inadequate BMS specification: Undocumented communications protocols or insufficient protections increase integration costs.Thermal management oversights: Failing to account for outdoor installation conditions or NFPA 855 ventilation requirements.Logistics underestimation: Not planning for hazmat shipping constraints or local...