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Weco UNIVERSAL HeSU 4K4

The Weco UNIVERSAL HeSU 4K4 is a battery pack with a capacity of 86Ah, LFP O-Li cells, certification to CE UN 38.3, up to 5 units - 24 kwh max capacity, a weight of 50 kg and an ingress rating of IP20 ( IP 65 on request).

Last updated: 1 November 2026

Battery and charging

Capacity (amp-hours)
86Ah

Row from the maker’s page: “Nominal capacity” | “86Ah”

Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

Energy (kilowatt-hours)
4.45 kWh

Row from the maker’s page: “Net Energy” | “4.45 kWh”

Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

Chemistry
LFP O-Li

Row from the maker’s page: “Cell type” | “LFP O-Li”

Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

Rated charge cycles
7000

Row from the maker’s page: “Expected cycles @ STC” | “7000”

Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

Mounting position
Wall or floor mounted

Row from the maker’s page: “Installation mode” | “Wall or floor mounted”

Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

Series and parallel limit
Up to 5 units - 24 kwh max capacity

Row from the maker’s page: “Units in parallel” | “Up to 5 units - 24 kwh max capacity”

Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

Battery care and safety

Ingress protection
IP20 ( IP 65 on request)

Row from the maker’s page: “IP grade” | “IP20 ( IP 65 on request)”

Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

Temperatures it may be run in
-20°C + 60°C

Row from the maker’s page: “Operative temperature in discharge” | “-20°C + 60°C”

Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

Size and fit

Weight
50 kg

Row from the maker’s page: “Net Weight” | “50 kg”

Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

Compatibility

Battery voltage window
46.3-57.8Vdc

Row from the maker’s page: “Operative voltage” | “46.3-57.8Vdc”

Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

Certification claims

Standard certified to
CE UN 38.3

Row from the maker’s page: “Standards” | “IEC 61600-6-3: 2017 61600-3-2:2014 61000-3-3:2013 61600-6-2007 CE UN 38.3”

Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

Sources

  • Archived document

    Source: web.archive.org/web/20221115204817id_/https://wecobatteries.com/oweephee/2019/06/pdf-stackable-4k4.pdf

    Retrieved November 1, 2026