How much usable energy does the Pylontech Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx) store?

The usable energy is unavailable: it was not found in the manufacturer's documents or other sources checked for this database (compiled 28 Oct 2026).

What is the round-trip efficiency of the Pylontech Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx)?

95 % (DC) (datasheet, solarshop.baywa-re.lv, read 28 Oct 2026). DC means the battery alone, without the inverter.

What warranty does the Pylontech Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx) have?

The warranty is unavailable: it was not found in the manufacturer's documents or other sources checked for this database (compiled 28 Oct 2026).

Does the Pylontech Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx) include an inverter?

Yes, it has an integrated power conversion system (PCS) rated 125 kW (datasheet, solarshop.baywa-re.lv, read 28 Oct 2026).

Pylontech

Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx)

Q: How much does the Pylontech Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx) cost?

No public price listing was found for it when this database was compiled (28 Oct 2026). Zorowatt does not estimate prices.

Single liquid-cooled outdoor all-in-one cabinet: 1 battery string of 5 x 52.25 kWh modules + 125 kW PCS. xx = fire/explosion safety variant 01-05.

Pylontech in-house LFP 314 Ah modules (HM7A200L, PowerCube-M7A string) + integrated non-isolated 125 kW PCS

Short answer

The Pylontech Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx) is an LFP C&I battery cabinet (as specified: Single liquid-cooled outdoor all-in-one cabinet: 1 battery string of 5 x 52.25 kWh modules + 125 kW PCS. xx = fire/explosion safety variant 01-05). Usable energy: unavailable. Max. discharge power: 125 kW. Round-trip efficiency: 95 % (DC). Warranty: unavailable.

Each figure is in the table below with its source and the day it was read.

Specifications

Spec	Value	Source
Chemistry	LFPOfficial user manual v2.4 (2025), hosted by distributor BayWa r.e.	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Usable energy	unavailableManual gives rated energy 261.248 kWh and DoD 95%; usable energy not stated	Not published
Nominal energy	261.25 kWh	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Max. discharge power	125 kWAC rated power	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Max. charge power	125 kWAC rated input/output power of integrated PCS; max DC power 137.5 kW	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
C-rate	0.48 Cderived: 125 kW / 261.2 kWh. Standard string current 150 A (~0.48C of 314 Ah)	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Round-trip efficiency	95 % (DC)'Round-trip Efficiency (%, @ 0.5 C) 95%' listed in battery string specification (DC)	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Depth of discharge	95 %Battery string spec; distributor search4solar lists 98% DoD (conflict)	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Cycle life	8,500 cyclesConditions: Distributor listing: 'cycle life exceeding 8500 cycles'; conditions not stated. Not found in manual.	search4solar.comDistributor · read 28 Oct 2026
Warranty	unavailableNo warranty document found	Not published
Warranty cycles	unavailable	Not published
Warranty throughput	unavailable	Not published
Capacity at end of warranty	unavailable	Not published
Nominal voltage	832 V	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Operating temperature	−25 to 55 °COptimum 15-45 C; power limited if cell temp >55 C or <15 C. Cell charge threshold 2~55 C	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Dimensions (W × D × H)	950 × 1,300 × 2,480 mm	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Weight	2,900 kg	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Ingress protection	IP55	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Integrated inverter (PCS)	Yes, 125 kW	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Scalability	Distributor: 'supports up to 6 units in parallel configuration'. Manual references parallel cabinets.	search4solar.comDistributor · read 28 Oct 2026
Certifications	EN 62477-1, EN IEC 61000-6-2, EN IEC 61000-6-4, IEC 61000-6-7, IEC 62619, IEC 63056, VDE-AR-E 2510-50, VDE-AR-E 2510-2, UL 9540A, NFPA 69, UN 38.3, UL 1973, UL 1642, ISO 13849-1Listed in manual as 'Reference Standards' (system + battery); not explicitly as obtained certificates	solarshop.baywa-re.lvDatasheet · read 28 Oct 2026
Compatible inverters	unavailableN/A: integrated PCS	Not published

Datasheetsolarshop.baywa-re.lvversion User Manual v2.4 (5PMPA08-20068) · dated 2025 · read 28 Oct 2026

search4solar.com · pylontech-l260-omni-260kwh-125kw-battery-system-with-integrated-cabinet

Notes

No official standalone datasheet found (Pylontech site is JS-rendered); specs from official user manual hosted by BayWa r.e. Named 'L260' though rated 261 kWh. Pylontech also announced L2200 OMNI / L3300 BAT (container class) at Intersolar 2025 - not captured.

Sold in: EU

Prices

No public price listing was found when this database was compiled (28 Oct 2026). Zorowatt does not estimate prices.

Questions

How much usable energy does the Pylontech Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx) store?: The usable energy is unavailable: it was not found in the manufacturer's documents or other sources checked for this database (compiled 28 Oct 2026).
What is the round-trip efficiency of the Pylontech Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx)?: 95 % (DC) (datasheet, solarshop.baywa-re.lv, read 28 Oct 2026). DC means the battery alone, without the inverter.
What warranty does the Pylontech Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx) have?: The warranty is unavailable: it was not found in the manufacturer's documents or other sources checked for this database (compiled 28 Oct 2026).
Does the Pylontech Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx) include an inverter?: Yes, it has an integrated power conversion system (PCS) rated 125 kW (datasheet, solarshop.baywa-re.lv, read 28 Oct 2026).
How much does the Pylontech Optim US-L260-Omni (Optim US-A1-M7-B-125/261-EU-xx) cost?: No public price listing was found for it when this database was compiled (28 Oct 2026). Zorowatt does not estimate prices.

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