EndurEnergy ESP-BU15: Specs & Datasheet
MPN: ESP-BU15The EndurEnergy ESP-BU15 is listed under battery enclosures in the EndurEnergy catalog at Portlandia Electric Supply. Contractors and buyers searching “ESP-BU15” for specifications or the datasheet land here: below are the published specifications we have on file for this exact part number, plus compatibility and sourcing notes.
Specifications
| Manufacturer | EndurEnergy |
|---|---|
| MPN | ESP-BU15 |
| Energy | 15.36 kWh (3 × 5.12 kWh ESP-5100) |
| Chemistry | Lithium Iron Phosphate (LFP) |
| Nominal / Working Voltage | 51.2 V / 48–56 V |
| Capacity | 300 Ah (parallel) |
| Round-Trip Efficiency | Up to 97% (module spec) |
| Cycle life | ~6,000 cycles |
| Enclosure rating | IP55 (outdoor) |
| Dimensions (L × W × H) | 22.3″ × 5.7″ × 64.0″ |
| Weight | ≈ 359.5 lb (163 kg) assembled |
| Compliance | UL 9540 / UL 1973 (per product docs status) |
| What’s included | Outdoor-rated enclosure with integrated BMS and 3 × ESP-5100 LiFePO₄ battery packs (5.12 kWh each) wired in parallel. |
| 15.36 kWh usable class | (3 × 5.12 kWh LFP modules) with long life (>6,000 cycles @ recommended DoD). |
| Outdoor-ready IP55 | steel enclosure; compact footprint for wall or pad installs. |
| Closed-loop capable | with popular hybrid inverters (e.g., Sol-Ark), plus robust BMS safety & monitoring. |
| 10-year warranty | and up to 97% round-trip efficiency (per module datasheet). |
Compatible With / Used In
- Battery enclosures applications — manufacturer-listed product category for this part number
- Exact part-number replacements — this page covers MPN ESP-BU15 only — confirm the full part number on your unit, quote, or datasheet before ordering
- Contractor and installer sourcing — quantity pricing and nationwide shipping from Portlandia Electric Supply — call (502) 790-0600
Datasheet Availability
EndurEnergy publishes datasheets and installation documents through its official website. For the ESP-BU15 datasheet PDF specifically, call (502) 790-0600 and we will include it with your quote.
View the ESP-BU15 product page →Get a quote →
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Frequently Asked Questions
What are the specs of the EndurEnergy ESP-BU15?
Key published specs — Energy: 15.36 kWh (3 × 5.12 kWh ESP-5100); Chemistry: Lithium Iron Phosphate (LFP); Nominal / Working Voltage: 51.2 V / 48–56 V; Capacity: 300 Ah (parallel). The full specification table above lists every value we have on file; values marked “vendor listing” are from our supplier feed and pending manufacturer verification.
Where can I get the ESP-BU15 datasheet?
EndurEnergy publishes datasheets and installation documents through its official website. For the ESP-BU15 datasheet PDF specifically, call (502) 790-0600 and we will include it with your quote.
Is the EndurEnergy ESP-BU15 in stock?
Yes — in stock at Portlandia Electric Supply with nationwide shipping. Call (502) 790-0600 for pricing and lead time.
How do I make sure the ESP-BU15 is the right part?
Match the full part number ESP-BU15 exactly against your unit, quote, or existing datasheet — part-number families differ in ratings. Call (502) 790-0600 and our team will verify it before you order.
Specifications sourced from the manufacturer listing data maintained by Portlandia Electric Supply. Where a value is not published, it is marked as such — we do not estimate specifications. Questions: call (502) 790-0600. Portlandia Electric Supply, Louisville, KY — 12+ US distribution hubs.