SunEnergyXT

SunEnergyXT BK215 PLUS 4300 Wh Master Battery + Expansion Module for Balcony Power Plants

SKU: 1500

✓︎ 4.3 kWh LiFePO4 storage for maximum self-consumption
✓︎ IP65 weatherproof with heating function for winter
✓︎ Smart app control & expandable up to 17.2 kWh

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Delivery time: 2 - 5 Workdays

1.349,00 €

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SunEnergyXT BK215 PLUS 4300 Wh Master Battery + Expansion Module for Balcony Power Plants

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Description

With the SunEnergyXT BK215 PLUS 4300 Wh master battery + expansion module, you get the most out of your balcony power plant. This powerful storage set saves your surplus solar energy for the evening hours, drastically reduces your electricity bill, and makes you more independent from rising energy prices.

Your Benefits at a Glance

Use the solar power you generate yourself around the clock.
Durable LiFePO4 technology for maximum service life.
Reliable operation even in winter thanks to the integrated heating function.
Flexibly expandable at any time as your energy needs grow.
Full control and overview via the free smartphone app.

The System Components

The Master Battery

As the intelligent control center of your system, this module not only stores electricity but also manages the optimal energy flow. This ensures you get the best possible yield from your solar system at any time of day, with power available exactly when you need it.

The Expansion Module

This additional battery module instantly doubles your storage capacity. It integrates seamlessly into the system, ensuring that even during intense sunlight, no valuable electricity is lost but is safely stored for later use.

GENERAL DATA System Overview & Dimensions
System scope	1x BK215 PLUS (master battery) + 1x B215 PLUS (expansion module)
Total storage capacity	4,300 Wh (4.3 kWh)
Battery technology	Lithium iron phosphate (LiFePO4)
Service life	> 6,000 charge cycles
Protection class	IP65 (suitable for indoor and outdoor use)
Total weight	approx. 49.3 kg (24.8 kg master battery + 24.5 kg expansion module)
Dimensions (BK215 PLUS)	L 479 × W 289 × H 261 mm
Dimensions (B215 PLUS)	L 479 × W 289 × H 276 mm
INPUT / PV CONNECTION (DC) Values for Solar Panels
Number of MPPT trackers	3 (2x on the master battery, 1x on the expansion module)
Max. total PV input power	2,400 W (3x 800 W)
Input voltage per MPPT	10 V - 60 V (absolute maximum voltage: 90 V)
Max. input current per MPPT	22 A
Connector type	MC4-compatible
OUTPUT (DC) Values to Microinverter
Rated output power	2,400 W (increased through module coupling)
Output voltage	33.6 V - 43.2 V
Max. output current	4 x 25 A max.
Compatible inverters	Deye, APsystems, Hoymiles, TSUN, and others
ENVIRONMENTAL CONDITIONS & SAFETY Operation & Protection Functions
Charge and discharge temperature	-20 °C to +40 °C
Integrated heating system	Yes, automatic start below 0 °C (if solar power is available)
Protection functions	Overvoltage, overcurrent, deep discharge, short circuit, temperature, overload
Balancing mode	Passive balancing
CONNECTIVITY & SMART HOME Control & Monitoring
Communication	WiFi, Bluetooth
Control	SunEnergyXT app & LCD display on the device
Smart home integration	Home Assistant, Shelly, EcoTracker, bitShake, OpenDTU