Discover HELIOS Energy Storage System is purpose-built for the replacement of 24V and 48V groupings of the popular GC-size lead-acid battery used in off-grid solar systems. Discover HELIOS ESS incorporate a proprietary high-current BMS that delivers superior peak power along with lightning-fast 1C continuous charge and discharge rates, and unlike lead-acid batteries, can be continuously operated in a partial state of charge (PSOC) without degrading performance. Discover HELIOS features COLD CHARGE functionality, allowing cold temperature charging to begin from -20⁰C / -4⁰F.

HELIOS Unboxing

Introducing HELIOS ESS, the newest battery from Discover. Launching in the fall of 2022, HELIOS ESS is purpose-built for off-grid solar and backup power applications and is available in 24V and 48V options.

Product Features

  • Multi-battery BMS communication
  • Connect battery string to LYNK Gateway
  • Remote ON / OFF

External Fuse
  • Field serviceable fuse protects your investment from abuse or misuse

ON/OFF Status
  • ON/OFF Switch
  • At-a-glance multi-color status LED

High-Current BMS
  • Plug-and-Play system wide BMS communication
  • Sets voltage, broadcasts SoC and temperature
  • High Peak Discharge and 1/C Continuous Charge Current

Cold Charging
  • Integrated self-heating
  • Charging from -20˚C / -4˚F

Product Features

Optional Accessories

  • LYNK Devices
  • Remote State of Charge Display
  • Network Cables
  • Configure LYNK Device
  • Monitor Discover Lithium Batteries
  • Troubleshoot and download battery logs
  • Simulate and validate integration of Discover Lithium Batteries


Advanced Integration - Faster Charging

Unlock the full potential of a HELIOS Energy Storage System by enabling the BMS to optimize and dynamically manage the charge configurations of the world’s best industrial chargers and mobile inverter chargers. The LYNK PORT on each HELIOS ESS allows for real-time closed-loop communication between multiple batteries and with a charger, or inverter charger, using LYNK II to aggregate and communicate State of Charge.

Additional Accessories

IP-65 rated network cables suitable for wet and humid environments are available for IP-67 rated HELIOS Energy Storage System batteries.

  • DLP B2B-400 (COMM Cable 0.4 meters / 15.75 inches) | PN: 950-0035
  • DLP TOL-7600 (COMM Cable 7.6 meters / 299.25 inches) | PN: 950-0037
  • DLP TOL-1800 (COMM Cable 1.8 meters / 70.87 inches) | PN: 950-0036
  • DLPT Connector (COMM T Connector) | PN: 950-0041
  • DLP T Connector (COMM T Connector) with DLP B2B-400 (COMM Cable 0.4 meters / 15.75 inches) | PN: 950-0038

Product Registration

Discover HELIOS offers an industry-leading warranty to ensure years of trouble-free, high-performance operation.

Click on the REGISTER PRODUCT button and use the form to register your product(s) to validate your warranty.