TT-LCT 51.2 V residential battery
20.992 kWh Home Battery System
The TiantaiTech TT-LCT-20 combines 20.992 kWh nominal energy, 18.89 kWh available energy at 90% DOD and CAN / RS485 communication for professional residential energy storage projects.
Verified model data
TT-LCT-20 technical overview
Use these values for initial evaluation. The current datasheet, written compatibility confirmation and contractual quotation govern the final order.
| Nominal voltage | 51.2 V | Voltage range | 44.8-57.6 V |
|---|---|---|---|
| Cell configuration | 3.2 V 205 Ah / 16S2P | Capacity | 410 Ah |
| Nominal energy | 20.992 kWh | Available energy at 90% DOD | 18.89 kWh |
| Maximum charge / discharge current | 200 A | Communication | CAN / RS485 |
| Cycle life at 25°C, 80% DOD | >=6,000 | Design life at 25°C | >=15 years |
| Weight | 180 kg | Dimensions (W x D x H) | 650 x 265 x 955 mm |
| Installation | Ground only / indoor only | IP rating / protection | IP21 / BMS + breaker |
| Operating temperature | Charge 0-50°C | Discharge temperature | -10-50°C |
| Scalability | Up to 15 same-model batteries in parallel | Standard warranty | 5 years |
This model is documented for indoor, ground-mounted installation only. Extended warranty, certifications, inverter compatibility, accessories and order-specific documents require written confirmation.
Application planning
Evaluate energy, power and compatibility together
A 20 kwh battery label describes capacity, not the complete system. Professional selection should begin with daily consumption, supported loads, required backup time, inverter output and local installation rules.
- Compare usable energy with the intended daily load profile
- Check continuous and surge power at the inverter
- Confirm battery-to-inverter protocol and firmware
- Define essential loads and backup switching
- Verify destination-market documents before ordering
Buyer questions
TT-LCT-20 FAQ
Concise answers for distributors, installers and project buyers comparing this model.
How much usable energy does the TT-LCT-20 provide?
The documented available energy is 18.89 kWh at 90% depth of discharge. Actual system output and runtime also depend on inverter efficiency, reserve settings, temperature and connected loads.
Can the TT-LCT-20 work with any inverter?
No. The battery uses a 51.2 V platform with CAN and RS485 communication, but voltage range, protocol, firmware and approved compatibility must be confirmed for the exact inverter model.
Can multiple TT-LCT-20 batteries be connected?
The current TT-LCT technical data states up to 15 same-model batteries in parallel, subject to the confirmed system design, cabling, protection, communication and installation instructions.
Is pricing shown on this page?
TiantaiTech supplies professional buyers by quotation. Price, MOQ, lead time, warranty scope, certification evidence and included accessories are confirmed for the destination market and order configuration.
TT-LCT model range