looking in ebay i mostly found "solar" to "grid" inverter which cannot be hooked directly to 12V LA battery as input sigh. here's what i want to do basically... i have storage battery that are charged externally, dont ask where from it can be anything solar, wind, sweat whatever. the point is, charging/storing to 12V battery is the crucial part. if while charging or not, when its decided the battery have enough juice (voltage check), the battery energy, including the "externally charging" energy (if any) will be feed to home grid to make electricity bill cheaper. if battery do not have enough juice, then inverter will turned off and the home will use normal mains grid power wait until some charging to bring back the battery juice/volt level. the power is not much, just for personal home use in range of maybe 500W - 2KW. any suggestion of the device (grid tie inverter) that can do the job? (12V battery as input).
maybe this? but i believe this is not "grid tie" inverter that i can directly connect to grid right? i will need separate grid tie inverter?
http://www.ebay.com.my/itm/OPTI-SOLAR-HYBRID-INVERTER-2400W-24V-PURE-SINE-WAVE-WITH-CHARGE-REGULATOR-50A-/301327416749?pt=UK_Gadgets&hash=item4628837dad#ht_4897wt_1125or maybe this one? but its pricey. its hybrid can take solar and wind and MPPT stuffs which probably i dont need. any cheaper than this?
http://www.ebay.com.my/itm/3000w-Solar-Hybrid-inverter-off-grid-On-grid-max-PV-input-4500w-/131214685480?pt=AU_Solar&hash=item1e8d013528#ht_7053wt_1125i only need battery as input and converted to grid, thats it. thanks for suggestion.