Skip to content

Discover Energy | Helios ESS Battery 16.1 Kwh 51.2V 314 Ah Outdoor

SKU 52-48-16000
Original price $3,736.84 - Original price $3,736.84
Original price
$3,736.84
$3,736.84 - $3,736.84
Current price $3,736.84
SPRING SALE – LOWEST PRICES GUARANTEED
Spring is here, and so are unbeatable deals. Don’t wait—shop now and secure the lowest prices before the sale ends!

Helios ESS Battery 16.1 Kwh 51.2V 314 Ah Outdoor

The Helios ESS Battery 16.1 Kwh 51.2V 314 Ah Outdoor is a premium lithium energy storage system designed for high-performance and long-lasting reliability in both off-grid and grid-connected renewable energy applications. Engineered with LiFePO4 (lithium iron phosphate) chemistry, this outdoor-rated unit offers enhanced safety, stability, and efficiency, making it ideal for residential, commercial, and light industrial use.

With a nominal capacity of 16.1 kWh and 51.2V voltage, the Helios battery provides consistent power output and seamless compatibility with major inverter brands. Its smart Battery Management System (BMS) ensures protection against overcharging, deep discharge, and temperature variations, maximizing the lifespan and performance of your energy system.

Designed for scalability, the modular layout allows users to expand storage as needed—supporting growing energy demands with ease. Plus, with built-in remote monitoring capabilities, the Helios makes system oversight, maintenance, and diagnostics simple and effective from anywhere.

Key Features

  • High-Capacity Output
    16.1 kWh nominal capacity with 51.2V and 314 Ah for substantial energy storage in demanding applications.

  • Outdoor-Ready Design
    Durable and weather-resistant for reliable use in exterior installations and harsh environments.

  • Safe & Efficient Chemistry
    Lithium iron phosphate (LiFePO4) offers enhanced safety, thermal stability, and longer cycle life.

  • Scalable & Modular
    Easily expand your energy storage system as needs grow—perfect for residential and commercial setups.

  • Smart BMS Protection
    Integrated Battery Management System protects against overvoltage, deep discharge, overheating, and short circuits.

  • Remote Monitoring Support
    Enables real-time performance tracking, system alerts, and diagnostics from anywhere.

  • Inverter Compatibility
    Works with leading inverter brands for smooth integration into your power system.

  • Long-Term Reliability
    Designed for thousands of cycles and backed by a strong warranty for peace of mind.

Specification

  • Norminal Voltage: 51.2
  • Energy: 16 kWh
  • Nominal Capacity: 314Ah
  • Charge Bulk Voltage - Bulk Vdc: 55.2 – 56.8 V
  • Max Continuous Charge Current: 200A
  • Max Continuous discharge Current: 200A
  • Certifications: UN38.3, UL 1973, UL 9540A, UL 9540 DC ESS 3rd Edition (Pending)
  • Terminal: Quick Connect Plug and Pull Terminal
  • Weight: 299.83 lbs (136 kg)
  • Dimensions: 35.43" x 18.31" x 9.72" (900 x 465 x 247 mm)

Manuals and Download

#1 DIY Solar Authorized Retailer
Fast & Safe Shipping
Sales Tax Free
Authorized Dealer Warranty
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.

DIY Solar Ebook Offer

Orders over $500 include a FREE (Normally $149.99) 80-Page DIY Solar eBook — added automatically at checkout.

The #1 Authorized DIY Solar Retailer

We're proud to be the USA's #1 Authorized retailer for high quality DIY solar brands

Fast Shipping

Experience the fastest shipping times you've seen in the entire solar industry.

Real Human Support

Questions? Give us a call to speak with our solar expert: (571) 350-0146

Frequently Asked Questions

Get your 30% Tax Solar Credit!

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!

Save With Exclusive Deals!

Save with discounts and get exclusive deals when you sign up with our newsletter!

USA Based Tech & Customer Support Got a question? Speak to our USA based tech & customer support team: 571-350-0146
#1 DIY Solar Authorized Retailer
Fast & Safe Shipping
Sales Tax Free
Authorized Dealer Warranty