Tools for your existing system
Diagnose problems, look up fault codes, and plan upgrades
Inverter Fault Code Lookup
Check your inverter display or manual for the code
Appliance Load Scanner
Check if your system can handle new appliances or identify power-hungry devices
Battery system voltage
Battery type
These settings affect the runtime calculation. Tubular lead-acid: only 50% of Ah is safely usable. Lithium: 80% is usable.
Appliances to check
No appliances added yet
Battery Cost & Lifespan Calculator
Compare battery types and plan for replacements over 10 years
Lithium LiFePO4: Higher upfront. Lasts 10–15 years. Best long-term value.
Common brands: Felicity Solar, Blue Carbon, SRNE
System Configuration
Typical: 5kW = 5 × 1000Wh lights, 1 × 400W fridge 12h = 4,800Wh, plus loads
How long you need to run on battery alone (e.g., 8h overnight + cloudy day)
Battery capacity
50Ah
@48V system
System cost
₦1,160,000
Lagos base
10-Year Total Cost Comparison
Tubular (lead-acid)
₦2,150,000
Includes 2–3 replacements @ ₦800,000 each
Lithium LiFePO4
₦1,210,000
No replacements needed (12-year lifespan)
Saves ₦940,000 over 10 years
Your 50Ah Lithium LiFePO4 System
Estimated cost: ₦1,160,000 installed in Lagos
Lithium batteries last 12 years — you will likely never replace them. With maintenance just ₦5,000/year, this is the best long-term value.
Recommended inverter: Growatt 5kVA hybrid (SPF 5000ES)
₦546,000 — Best value