
EndurEnergy | ESP-5K HL Battery Pack | 5 kWh DC Battery
ESP-5K HL Battery Pack | 5 kWh DC Battery
Reliable, Scalable, and Built for the Future
Power your home with confidence using the ESP-5K HL Battery Pack, a high-efficiency 5 kWh DC battery engineered for residential energy storage. Designed by EndurEnergy with EverSure lithium iron phosphate (LFP) cells, this battery delivers unmatched safety, performance, and lifespan—backed by a 10-year warranty and 24/7 U.S.-based technical support.
Whether you're upgrading your off-grid setup or creating a full backup solution, this battery offers robust performance with 6000+ cycles, 97% round-trip efficiency, and seamless integration with Sol-Ark inverters for an advanced, all-in-one energy system.
Key Features
-
Battery Model: ESP-5K HL
-
Nominal Energy: 5 kWh
-
Peak Power Output: 5 kW (3 seconds)
-
Battery Chemistry: Lithium Iron Phosphate (LFP)
-
Nominal Voltage: 51.2V
-
Max Discharge Current: 60 A
-
Recommended Depth of Discharge: 90%
-
Efficiency: 97% round-trip
-
Scalability: Up to 640 kWh per system (8 strings of 16 packs each)
Specifications
- Model: ESP-5K HL
- Nominal Voltage: 51.2 V
- Working Voltage : 48 V - 57.6 V
- Nominal Battery Energy : 5 kWh
- Peak Power : 5 kW 3s
- Max. Battery Bank Size : 80 kWh per string (16 packs per string)
- Max. Battery System Capacity : 640 kWh per system (8 strings with 16 packs each)
- Recommended C rate : 0.5 C
- Max. Charge & Discharge Current : 60 A
- Round Trip Efficiency : 97%
- Recommended DoD : 90%
- Charge Temperature Range : 32 °F to 122 °F (0 °C to 50 °C)
- Discharge Temperature Range : 14 °F to 131°F (-10 °C to 55 °C)
- Life Cycles : 6000
- Protection Level : IP20
- Size L x W x H: 17.40 x 19.70 x 5.24 in (442 x 500 x 133 mm)
- Weight : 101.413 lb (46.00 kg)
- Battery Type : Lithium Iron Phosphate (LFP)
- Warranty : 10-Year
- Compliance : UL1973 certified. UL9540, UL9540A, CEC and SGIP pending
Are Solar Guys Pro Authorized Retailers?
Yes! We are proud to be one of the few online retailers who are authorized retailers for every single product we carry!
When Will My Order Ship?
Most orders ship within 1–3 business days. You’ll get a tracking number as soon as it ships via email!
Do We Accept Returns?
Yes absolutely, we have a no-hassle, 30-day return policy on all items! To refer to the full policy, click HERE
Are Products Brand New?
Yes! All products on Solar Guys Pro are 100% brand-new and in perfect condition.
We do not sell any used or refurbished items.
Frequently Asked Questions

Get your 30% Tax Solar Credit!
Unlock substantial savings with the government's Solar Tax Credit, which offers a robust 30% deduction on the installation costs of solar systems. This attractive incentive is your ticket to leveraging solar energy's eco-friendly potential while enjoying the financial benefits.
At Solar Guys Pro, our commitment is to you. Please be reminded that our expertise does not extend to tax advice. Nonetheless, our dedicated staff is eager to guide you through the process and ensure you capitalize on this exceptional offer.
Contact us now to learn more!