Enerezza PlusⅡ

Last verified 2026-10-06.

• Kyocera describes this as a semi-solid clay-type lithium-ion storage system and says, based on its own research, that it was the first in the world to mass-produce this battery type.
• Kyocera's 24 March 2026 release says sales begin from spring 2026, and the product page says the units are built to Japanese domestic specification and cannot be used outside Japan.
• The 20,000 cycle figure is Kyocera's count to 60% of rated capacity under its own test conditions, not a warranted value; the warranty is 15 years for equipment and capacity, with a retained capacity guarantee of SOH 65% or more.
• It cannot be scored yet: battery round-trip efficiency and IP rating remain unestablished. Exact IEC or UL certification and governing warranty throughput terms remain unresolved. The maker’s JIS safety statements in the specification sheet are distinct from an independently reviewed certification listing.
• A separate high-voltage public and industrial version sold under the same name is not covered here, and this record is not joined to any scored battery.
• Legal manufacturer as printed: 京セラ株式会社 (issuer of the release and named trademark holder on the product page).
• The residential specification sheet joins all nine MC/ML/LM0570, 1140 and 1710 models to one, two and three LBS-0570 battery units respectively. Nominal capacity is 5.7, 11.4 and 17.1 kWh; initial effective capacity is 5.0, 10.1 and 15.2 kWh under JIS C 4413. Initial effective capacity is not a lifetime retained-capacity guarantee or a round-trip-efficiency measurement.
• For one, two and three battery units respectively, the sheet lists battery rated output of 1.5, 3.0 and 4.5 kW in grid-connected operation, and 3.0, 4.5 and 4.5 kW in standalone operation. These configuration-specific battery figures are separate from the power conditioner’s limits; no surge duration is established here.
• The MBS-591 power conditioner is rated at 5.9 kW for grid output and 6.0 kVA for standalone output, with 3.0 kVA per leg. Its standalone apparent-power rating is not a promise of 6 kW from every battery configuration. Available simultaneous load depends on battery-unit rated power and the sources operating at that time; excessive or high-starting loads may not operate.
• The sheet’s 96.0% efficiency is solar power conversion at rated output. It does not establish battery round-trip efficiency, and the initial-effective-to-nominal capacity ratio must not be substituted for that measurement. Outdoor installation suitability likewise does not establish an IP rating.
• The LBS-0570 battery-unit usage range is -10 to +45°C and its installation range is -20 to +45°C. The sheet says charge and discharge are strongly restricted to small currents between -20 and -10°C, and low temperatures can extend charging time. Heavy salt-exposure sites and places colder than -20°C require indoor installation; units must not be placed where snow accumulates. These conditions do not establish weather immunity.
• Kyocera’s sheet states that end-of-life-aged cells passed its evaluation under JIS C 4414 section 6.7.2, and that degradation monitoring under section 6.7.3 stops battery-unit charging and discharging at the maker-defined cell end of life and notifies the user through the remote. This is an attributed maker statement; an independent test report or certificate has not been reviewed. The stop threshold is not quantified, and it is not a guarantee of battery-unit lifetime.

• KYOCERA product page: Enerezza PlusⅡ (Japanese)https://www.kyocera.co.jp/solar/products/enerezza-plus-2/

  Prints the product name, the nine residential model codes across multi-input, hybrid and single-function types, the semi-solid clay-type battery claim, the 20,000 cycle figure with its 60% test footnote, the 15 year equipment and capacity warranty table, and the Japan-only use statement.

• KYOCERA news release, 24 March 2026 (Japanese)https://www.kyocera.co.jp/newsroom/news/2026/002977.html

  States that sales begin from spring 2026, that the system uses semi-solid clay-type lithium-ion cells Kyocera says it was first to mass-produce, the 5.7, 11.4 and 17.1 kWh rated capacities, and the SOH 65% or more capacity guarantee over 15 years.

• KYOCERA solar and storage product list (Japanese)https://www.kyocera.co.jp/solar/products/

  Lists Enerezza PlusⅡ as a current Kyocera lithium-ion storage system.

• KYOCERA residential Enerezza PlusII specification sheet (Japanese)https://www.kyocera.co.jp/solar/products/uploads/EGS-MC-ML-LM0570_1140_1710.pdf

  One page, checked 6 October 2026; printed revision not established. Exact nine residential models, JIS C 4413 initial effective capacities, configuration-dependent battery output, separate PCS limits, installation conditions and attributed JIS C 4414 protection statements. Solar 96% is not battery RTE; no IP rating or independently reviewed safety certificate established.