Compact inverter · 01
Illustrative concept · Final specification on enquiry
Energy Storage System
Backup that fits the load.
Explore SPG inverter and lithium battery options based on what you actually need to keep running.
Discuss your requirementKEEP YOUR EVERYDAY CONNECTED
APPLICATION CONCEPTILLUSTRATIVE IMAGE
APPLICATION CONCEPTILLUSTRATIVE IMAGEFind my backup system
Size your inverter around what you need to keep running.
Select your appliances and target backup duration to see an indicative SPG LiFe inverter, system voltage and battery tier.
What would you like to power?
Choose your essentials. Adjust quantities to update your backup estimate.
Ceiling fans75 W each
LED lights12 W each
Tube lights28 W each
AC (1 ton inverter)1000 W each
Refrigerator200 W each
Charging ports40 W each
Wi-Fi router20 W each
Total connected load Based on the quantities above378 W
How many hours do you need?
Set your preferred backup time. Your recommendation updates automatically.
Target backup duration
Live estimate
Connected load378 W
Energy needed2.27 kWh
Planning estimate only. Final sizing depends on appliance starting loads and installation requirements.
Recommendation ready
Standard sizing matchA practical match for your backup plan.
Recommended inverterSPG LiFe 1200 VA Modular / Built-In Inverter
Matched to a 378W connected load using the supplied SPG inverter thresholds.
System voltage12V
Battery tier300Ah
Nominal energy3.6 kWh
Estimated backup with this tier6.8–8.6 hoursNominal estimate: 7.7 hours
Why this result?
The recommendation shows the decision inputs instead of hiding them.
- Load matched378W maps to the 12V inverter tier.
- Losses included10% inverter conversion loss and a 90% lithium depth-of-discharge limit are applied.
- Battery rounded up233.3Ah calculated, rounded up to the next 100Ah tier.
This is an indicative planning calculation using the appliance wattages shown above. Actual backup and suitability can vary with appliance startup surge, power factor, simultaneous use, battery condition, installation and operating conditions. Final product selection should be confirmed by SPG LiFe.
Applicable configurations
Designed for calm, dependable backup.
Final features and limits must be confirmed against the selected product specification.
Clear information, low upkeep and quiet operation for everyday living.
01
Fast switchover
Up to 6 ms on applicable configurations.
02
Wide input range
90–270V support on selected models.
03
UPS / inverter modes
Flexible operation where applicable.
04
LCD status
Clear system information for everyday use.
05
Fast charging
Charging behaviour matched to the selected system.
06
Low maintenance
A practical lithium backup experience.
07
Long backup planning
Sized around your loads and required duration.
08
Protection systems
Model-specific electrical safeguards.
09
Low-noise operation
Designed for comfortable occupied spaces.
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Frequently asked questions
Clear answers. Confident choices.
From choosing your system to everyday care—find the details you need.
01How do I choose the right inverter size?
List the appliances that must run together, their starting demand and the required backup duration. Final sizing should be confirmed by SPG.
02Can I run an air conditioner?
Air-conditioning requires model-specific assessment because starting demand and compressor type can materially affect sizing.
03How much backup time will I get?
Backup duration depends on battery energy, connected load, appliance behaviour and system efficiency.
04Is routine maintenance required?
The selected system should be installed and used according to its approved ventilation, inspection and care guidance.
05Can the system keep Wi-Fi running?
A router is usually a modest load, but it should still be included in the complete backup calculation.
06Is switchover immediate?
Applicable SPG configurations may support switchover up to 6 ms. Confirm the selected model and connected equipment.
07Does it support a wide input range?
Selected configurations may support 90–270V input. The approved model specification is the final reference.
08Can I use UPS and inverter modes?
UPS and inverter modes are available on applicable configurations and should be selected for the connected loads.
09Is the system solar ready?
Solar compatibility depends on the selected architecture and interface. Share the existing or planned solar system during sizing.
10What protection is included?
Protection varies by model. Request the product-specific protection list and installation requirements.
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