Growatt INFINITY 2000 PRO
#5 in LargeFull review
A low-cost 2 kWh LiFePO4 station for RV owners and home backup buyers who want a TT-30 outlet and room to expand. Buy it for the price per watt-hour rather than portability.
Amazon $648$648
The Growatt INFINITY 2000 PRO rates 4.2 among large portable power stations; the Growatt HELIOS 3600 rates 3.9 among home backup ones. The Growatt INFINITY 2000 PRO costs $550.98 less ($648 vs $1,198.98).
Growatt HELIOS 3600
#11 in Home backupFull review
A 3.7 kWh home backup station for buyers who want 240V from one unit and the option to grow toward whole-home backup. At the Amazon price it is one of the cheaper ways to get that much LiFePO4 capacity.
Amazon $1,198.98$1,198.98
Prices were last checked October 24, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different size classes (large and home backup), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Growatt INFINITY 2000 PRO | Growatt HELIOS 3600 |
|---|---|---|
| Overall rating | 4.2/5 | 3.9/5 |
| Value 25% | 97 $0.32 per rated Wh | 96 $0.33 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 100 LiFePO4, 4,000 cycles, 5-year warranty | 100 LiFePO4, 4,000 cycles, 5-year warranty |
| AC output 15% | 54 2,400 W continuous AC | 37 3,600 W continuous AC |
| Charging speed 10% | 76 0-100% on AC in 1 h 36 min | 32 0-100% on AC in 3 h |
| Portability 10% | 80 89 Wh per kg (51 lb (23 kg)) | 67 82 Wh per kg (99 lb (45 kg)) |
| Solar input 5% | 51 1,200 W max solar input | 46 2,000 W max solar input |
| Features 5% | 100 UPS (20 ms), expandable, 100 W USB-C, app | 100 UPS (20 ms), expandable, 100 W USB-C, app |
Specifications
| Growatt INFINITY 2000 PRO | Growatt HELIOS 3600 | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,048 Wh | 3,686 Wh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 4,000 to 80% | 4,000 4000+ cycles; end-of-life capacity not stated |
| Expandable | Yes, up to 6,144 Wh | Yes |
| Output | ||
| AC output | 2,400 W (4,800 W surge) | 3,600 W |
| Boost mode (resistive loads) | 3,400 W | 4,500 W |
| AC outlets | 5 total | 6 total |
| 120V 20A outlets (NEMA 5-20R) | 4 | 4 |
| RV 30A outlet (TT-30R) | 1 | 1 |
| 240V 20A outlet (NEMA 6-20R) | - | 1 |
| USB-C ports | 2 (up to 100 W each) | 4 (up to 100 W each) |
| USB-A ports | 4 | 2 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 2 | 2 |
| UPS / pass-through | Yes (20 ms switchover) | Yes (20 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | 1,800 W |
| Full AC charge time | 1 h 36 min (Spec table: 1.6 h to 100%; the feature list says 2 h (manufacturer)) | 3 h (About 3 h from 120V at 1800W, or 1.5 h from 240V at 3600W (manufacturer)) |
| Max solar input | 1,200 W | 2,000 W |
| Solar input voltage | 12-60V | 12-60V |
| Car charging | 96 W | 96 W |
| Build | ||
| Weight | 51 lb (23 kg) | 99 lb (45 kg) |
| Dimensions | 17.99 x 9.72 x 12.20 in | 20.4 x 12.3 x 16.5 in |
| App | MyGro app (Wi-Fi and Bluetooth) | myGro app (Wi-Fi and Bluetooth) |
| Warranty | 5 years | 5 years |
| Released | 2024-05 | 2024-09 |