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⚡ ZENER: বাংলাদেশের সেরা সোলার ও ইলেকট্রনিক্স শপ। Premium solar & electronics at the best prices | 📞 WhatsApp: +8801570281650
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-21% SaleComplete off-grid solar IPS package for small homes featuring SAKO 300W Pure Sine Wave ESS (314Ah LiFePO4 battery) and Tier-1 LONGi Horizon 225W Monocrystalline panel with free nationwide delivery.
The SAKO 300W 314Ah ESS + LONGi Horizon 225W Solar Combo is a high-performance, plug-and-play renewable energy solution engineered specifically to eliminate load-shedding headaches for small families, urban apartments, and rural residences across Bangladesh. This combo pairs SAKO's compact 5-in-1 Energy Storage System (ESS) with LONGi’s premium Horizon LR5-28HTH-225M solar panel. Powered by advanced HPBC (Hybrid Passivated Back Contact) monocrystalline cells, the LONGi Horizon panel delivers an impressive 21.6% module efficiency. Its 17.24V operating voltage (Vmp) and high 13.06A current (Imp) ensure fast, efficient battery charging even during overcast or low-light monsoon conditions[1][3]. The SAKO 300W ESS unit combines a pure sine wave AC inverter, a long-life 314Ah (1004.8Wh) Lithium Iron Phosphate (LiFePO4) battery, a high-efficiency MPPT charge controller, an AC grid charger, and direct DC/USB power outputs into a single box. Operating silently and cleanly without toxic acid fumes or water-topping maintenance, this system easily powers 2-3 ceiling or table fans, LED lights, Wi-Fi routers, laptops, and TV setups during extended power outages.
Zener Authenticity Promise: All sitemarks, models, and technical statistics are registered with the factory and verified in our physical laboratory before sale.
Uses 56 high-efficiency HPBC monocrystalline cells producing 21.6% efficiency[1]. Its 17.24V Vmp and 13.06A Imp push higher current into the battery, making daylight charging faster and more effective
Maintenance-free Lithium Iron Phosphate battery chemistry provides over 2,000 charge cycles—lasting 3 to 4 times longer than traditional acid/tubular IPS batteries.
Internal Maximum Power Point Tracking (MPPT) optimizes voltage and current matching, capturing up to 30% more solar energy than basic PWM controllers during hazy or morning hours.
Delivers clean electricity identical to grid power, protecting appliance motors from overheating, reducing fan noise, and ensuring zero interference on TVs or routers.
Charges automatically using sunshine via the 225W LONGi panel during the day, with automatic fallback to utility grid electricity during prolonged rain or monsoons.
Advanced Battery Management System guards against overcharging, deep discharge, high thermal conditions, and short circuits.
Mount the LONGi Horizon 225W panel facing due South at an angle of 20° to 25°. The 17.24V Vmp gives plenty of voltage headroom to push high current into the SAKO ESS even in Bangladesh's hot summer heat
For maximum backup duration (6–8+ hours), run 2 energy-efficient AC/DC fans, 3 LED bulbs, and a Wi-Fi router (total continuous consumption ~80W–110W).
Leave the ESS unit plugged into an AC outlet. The internal system automatically manages battery charging from solar energy when available, prioritizing clean solar power before drawing grid power.
The LONGi Horizon panel features an IP68 junction box and 3.2mm tempered glass built for monsoon rains, while the LiFePO4 battery requires zero fluid checking or maintenance.
A: LONGi is a global Tier-1 solar manufacturer. The Horizon LR5-28HTH-225M uses HPBC monocrystalline technology with 21.6% module efficiencyIts 13.06A operating current ensures much faster battery charging compared to generic unbranded panels.
A: The 1004.8Wh battery capacity provides around 6 to 8 continuous backup hours for 2 fans, 3-4 LED bulbs, and a Wi-Fi router. During daylight, real-time solar generation from the LONGi panel extends runtime significantly.
A: Yes. The SAKO 300W ESS functions automatically. It charges via the LONGi solar panel (or AC mains when solar is unavailable) and seamlessly provides backup power when load-shedding hits.
A: It is designed as a simple plug-and-play solution. Connect the positive and negative MC4 cables from the LONGi Horizon panel to the SAKO ESS solar input port, plug your household appliances into the AC output socket, and switch it ON.
A: The package includes a 2-Year Official Warranty for the SAKO 300W ESS unit and internal electronics, along with a 12-Year Product Warranty and 25-Year Linear Power Warranty on the LONGi Horizon Solar Panel.
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