15.36 kWh lithium battery for energy storage and solar battery for self-consumption, backup or small business sites. It uses grade A prismatic CALB cells with LiFePO4 chemistry and integrated BMS for long-lasting, safe use. Recommended if you want large storage capacity from the first module and easy expansion over time.
The battery is sold without the base.
The DeLong Top Energy 15kWh LiFePO4 lithium battery is designed to meet the needs of residential and professional solar installations. With a voltage of 51.2V and a capacity of 314Ah, it offers exceptional autonomy and an extended lifespan (over 6000 cycles). Manufactured with Grade A cells, this battery combines performance, safety and respect for the environment.
Ideal forself-consumption, back-up systems or industrial applications, it is compatible with most hybrid inverters on the market.
| Energy independence within reach Take self-consumption to the next level. With a real capacity of 15.36 kWh, the DeLong Top Energy module can cover the needs of a standard home from evening to morning, without drawing on the grid. |
Why choose CALB Grade A cells? At the heart of this battery are CALB 314Ah prismatic cells, world-renowned for their thermal stability and longevity. Unlike reconditioned cells, Grade A guarantees constant real capacity and maximum safety against overheating. |
Modularity: A system that grows with you Need more power? Its 'Stackable' design means you can add up to 4 modules for a total of 61.44 kWh of storage. Installation takes just a few minutes, thanks to Plug & Play technology." |

Delong Energy 's 314Ah 51.2V stackable solar battery is designed to meet the growing need for residential energy storage. Featuring high energy density LiFePO4 cells and an integrated intelligent BMS, this battery ensures high reliability, optimum safety and a long life of over 12 years. Thanks to its stackable and mobile design, it is perfectly suited to scalable installations for controlled self-consumption.
The Delong TOP Energy 15 kWh lithium battery is a high-performance, long-lasting storage solution, ideal for residential or professional solar installations.
It is made up of prismatic lithium iron phosphate (LiFePO4) cells manufactured by leading manufacturer CALB, with a capacity of 314Ah. These cells offer excellent stability, enhanced safety and a very long service life, even under intensive use.
The battery operates at 51.2 volts (i.e. 16 cells connected in series - 16S), making it perfectly compatible with most hybrid inverters on the market.
Thanks to its large storage capacity (15 kWh), it can efficiently power a household or small business site, day and night, and greatly reduce dependence on the electricity grid.
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Important notice for our customers in Belgium: An environmental contribution of €342.47 excluding VAT will be applied to the purchase of each Delong Energy lithium battery. |

| Modular and scalable Capacities range from 15.36 kWh to 61.44 kWh, with up to 4 stackable modules for flexible system expansion. |
LFP technology Offers enhanced safety, optimum reliability and long-lasting performance. |
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| Long service life Over 6,500 cycles for a 10-year service life. |
Space-saving design Stackable and compact, ideal for optimal use of space in off-grid energy storage systems. |
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| Flexible communication RS485/CAN/RS232 compatible for seamless integration and real-time monitoring. |
Versatile applications Ideal for residential or small-scale off-grid energy storage solutions. |
Modular stacking to suit your power requirements, easy installation
Step-61kWh energy storage can be installed in just 5 minutes!


The world benchmark for reliability
BYD: WORLD NO. 1 IN AUTOMOTIVE BATTERIES
→ More than 3 millionelectric vehicles equipped
→ Supplier to Tesla, Toyota, Mercedes
→ 20+ years of expertise in LiFePO4 batteries
✓ PRISMATIC vs. cylindrical format
→ Better heat dissipation (-30%)
→Higher energydensity(+15%)
→Greater mechanicalstability
→ Fewer connections = greaterreliability
✓ GRADE A (premium quality)
→Selection of the best cells
→Actual capacity = advertised capacity
→Minimum internal resistance
→ Constant performance over the entirelifetime
✓ AUTOMOTIVE SAFETY
→ Shock, vibration andextreme temperaturetests
→ Norecordedcases of thermal runaway
→ IntrinsicallysafeLiFePO4 chemistry
Ensures cells remain within safe operating limits and reacts if any cell exceeds these limits.

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| Balanced power | Overload protection | Short circuit protection |
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| Thermal protection | Overvoltage protection | Protection against overcurrent |
With its capacity of 314Ah at a voltage of 51.2V, this battery is ideal for domestic, commercial or industrial installations. Its modular design makes it easy to assemble up to 46kWh. Compact, robust and CE, UL, MSDS, IEC, UN38.3 and ISO certified, it offers stable, reliable performance over the long term.
Modular battery packs and inverters make installation easier, increase power and capacity, reduce wiring and cut costs, while offering a safer and more aesthetically pleasing solution.


This solar battery is ideal for

Delong lithium batteries are compatible with most UPS systems, giving you a more convenient user experience.

Delong Energy offers up to 10 years warranty on its batteries:
Good to know:
For more information, visit the official Delong website: https: //www.delongtop.com/support/
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Important notice for our customers in Belgium:
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Request your quote now.
A future-proof solution for your energy autonomy!
DeLong Top Energy lithium battery - 314 Ah 51.2 V LiFePO4 15 kWh – Category A CALB cells by Delongtop is available in our Lithium battery catalog. Technical specifications: cycles: Greater than or equal to 6500 Cycles @ 85% DOD, technology: LFP (LiFePO4), battery capacity: 15.36Kwh, width: 690 mm, height: 590 mm, thickness: 388 mm, rated capacity: 300Ah, maximum discharge current: 200A, weight: 118,5, communication: RS485/CAN, service life: + 15 years, rated voltage: 51,2 V, maximum load current: 100A, recommended load: 5~8Kw, load switching voltage: 57.6V± 0.2V, discharge cut-off voltage: 44.8V± 0.2V, terminal: M8, battery material: Metal, load temperature range: 0~45℃, discharge temperature range: -5~55℃, assembly method: Empilable et mobile. Product weight: 118.5 kg. Reference: Delong-Energy-15.
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