Exide STAR 24V 1450VA vs V-Guard Synergy Smart 1800

Two 24 V home inverters of about the same size, side by side on the specs each maker states. They differ on rating, max charging current.

Side by side

“Not stated” means the maker’s page doesn’t give it, not that the inverter lacks it.

	Exide STAR 24V 1450VA	V-Guard Synergy Smart 1800
Rating	1450 VA	1550 VA / 1350 W
Battery	24 V	24 V
Output wave	Pure sine wave	Pure sine wave
Max charging current	12 A	10 A
Lithium support	Not stated	Not stated
Warranty	Not stated	24 months
Comfortable load	928 W	1080 W
Backup at 300 W, 2 × 150 Ah	9 h 30 min	9 h 30 min
Source	Exide product page	V-Guard brochure (2021) Ratings from the 2021 brochure; the model is still listed on vguard.in.

Exide STAR 24V 1450VA charges at up to 12 A against 10 A, so after a long cut it refills a 150 Ah battery about 17% faster. Useful where cuts come back to back.
Only V-Guard Synergy Smart 1800 has the headroom for: 4 bhk or independent house.

From the running load of each set with a 25% margin, against each inverter’s VA.

Home or load	Needs	Exide STAR 24V 1450VA	V-Guard Synergy Smart 1800
1 BHK home	431 VA	Yes	Yes
2 BHK home	811 VA	Yes	Yes
3 BHK home	1048 VA	Yes	Yes
4 BHK or independent house	1528 VA	No	Yes
Refrigerator	263 VA	Yes	Yes
1 HP water pump	1200 VA	Yes	Yes
Air cooler	728 VA	Yes	Yes
Work from home	473 VA	Yes	Yes
Small shop	609 VA	Yes	Yes
1.5 ton AC	2372 VA	No	No

At half its comfortable load. Standby is 1% of rated watts, an assumption: no Indian brand publishes it.

	Exide STAR 24V 1450VA	V-Guard Synergy Smart 1800
Running 464 W / 540 W, 2 h of cuts a day	51.9 units a month	60.3 units a month
of which standby	8.4 units	9.7 units

Backup depends on the battery, not the inverter brand: with the same batteries and load, both give about the same hours.