Store the daytime sun for the evening peak
From a single 2.56 kWh wall unit for an apartment balcony to a 16 kWh wheeled cabinet that scales to 241 kWh, plus an all-in-one solar powerbox that puts inverter, MPPT charger and battery in one wall-mounted enclosure. All LiFePO4, all speaking CAN/RS485 to the inverters already common in Bangladesh.
Wall-mounted and floor-caster storage
Every model in this line is parallel-expandable and communicates over CAN / RS485, so it can be added to an existing solar installation rather than replacing it.
| Parameter | YJC-LV3 | YJC-LV5 | YJC-LV16 |
|---|---|---|---|
| Nominal energy | 2.56 kWh | 5.12 kWh | 16.08 kWh |
| Nominal voltage | 25.6 V | 51.2 V | 51.2 V |
| Nominal capacity | 100 Ah | 100 Ah | 314 Ah |
| Pack configuration | 1P8S | — | — |
| Rated charge / discharge current | 50 A / 50 A | 50 A | 157 A / 157 A |
| Max. continuous current | 100 A | 100 A | 157 A / 157 A |
| Peak current | — | 200 A (5 s) | — |
| Charge cut-off / end-off voltage | — | 58.4 V / 40 V | 58.4 V / 40 V |
| Efficiency | 94% | — | — |
| Self-discharge | ≤ 2% / month | — | — |
| Cell cycle life | — | ≥ 6,000 cycles | ≥ 8,000 cycles |
| Weight | 23.3 ± 2 kg | 45 kg | 120 kg |
| Dimensions | 430 × 135.5 × 320 mm | 420 × 550 × 160 mm | 435 × 872 × 233 mm |
| Communication | RS485 / RS232 / CAN | CAN / RS485 | CAN / RS485 |
| Max. units in parallel | ×15 (38.4 kWh) | ×15 (76.8 kWh) | ×15 (241.2 kWh) |
| Charging temperature | 0 to 50 °C | 0 to 50 °C | 0 to 50 °C |
| Discharging temperature | −20 to 60 °C | −20 to 60 °C | −20 to 60 °C |
| IP rating | IP20 | IP20 | IP20 |
| Certification | UN38.3 | UN38.3 | UN38.3 |
Compatible inverters include Deye, Growatt, Victron, SE, LuxPower, SRD, SMA, GoodWe, Sofar, Solis, SENERGYINV, MUST, AFORE, Voltronic, SOLAR and Sunways.
YJC-LV1.2K/1.28 — wall-mounted solar powerbox
Inverter, MPPT solar charger, battery charger and battery in one enclosure. Pre-wired, wall mounted, and it hands over to grid or solar automatically in 10 ms so nothing reboots.
| Parameter | Value |
|---|---|
| Rated output power | 1.2 kW / 1.2 kVA |
| Output voltage | 230 Vac (208 / 220 / 230 / 240 Vac selectable) |
| Output frequency | 50 / 60 Hz |
| AC input voltage range | 90 – 280 Vac, settable · L+N+PE · max 10 A |
| PV input | Max 1000 W · max 14 A · MPPT range 20 – 100 VDC · 1 MPPT route |
| MPPT efficiency | 99.5% |
| Max charging current (AC + PV) | 120 A (default 60 A) |
| Efficiency | > 90.5% @ 1.2 kVA (battery mode) / 99% @ 1.2 kVA (line mode) |
| THDi | ≤ 3% linear load / ≤ 5% non-linear load (PF = 0.7) |
| Battery | LiFePO4 · 12.8 V · 1280 Wh · operating 10 – 14.6 V |
| Max charge / discharge current | 100 A / 100 A |
| Transfer time | 10 ms (UPS / appliance / generator mode) |
| Display & communication | LCD · RS232 (9600 baud) |
| Dimensions / weight | 335 × 128 × 468 mm · 14.8 kg net (16.3 kg gross) |
| Operating / storage temperature | −10 to 50 °C / −20 to 60 °C |
| IP rating | IP20 |
Why installers pick this line
- Wall-mounted or wheeled formats — no heavy lifting, no complex installation
- Metal enclosure with intelligent cooling and BMS protection for stable temperatures
- Grade A LiFePO4 cells with high thermal stability — no fire, no explosion
- Dual RS485 ports for communication with both inverters and additional packs
- Integrated Wi-Fi monitoring on LV3 and LV5 — check the system from a phone or browser
- Advanced BMS covering overload, over-charge, over-discharge, over-temperature and short circuit
- Modular expansion — start small and add units as the load grows
- Suited to shops, factories, schools, clinics and off-grid homes
Model gallery
Size a solar bank for your load
Send us your array, your inverter and the load you want to carry through the evening. We'll come back with the model, the number of units and what we hold in stock in Dhaka.