Twikkers Market
ST20
https://www.pytesess.com/High-Voltage-Battery/ST20.html
https://www.pytesess.com/industry/Stackable-energy-storage-system-Revolutionizing-residential-and-commercial-use.html
ST20 Stackable High Voltage Energy Storage System, the newly developedsystem provides easy installation to make everything more efficient than ever. The stacking system provides flexible configurations from 204.8V to 512V voltageand 10.24 kWh to 25.6kWh capacity.
Smart
Energy Control Box on Top

Scalable
Up to 20 kWh (4 modules) per Stack

Compact
Brick-shaped Modular Design, Easy Installation, Save Labor Costs

Elegant
Modern design, High Protection Suitable for Indoor & Outdoor Installation

Cost-effective
Especially Applicable to High Electricity Price Areas & High Subsidy Areas
Pi LV1
https://www.pytesess.com/Low-Voltage-Battery/Pi-LV1.html
https://www.pytesess.com/industry/Stackable-energy-storage-system-Revolutionizing-residential-and-commercial-use.html
Compact and easy installation, specially desiged for limited installation space.
Expand the capacity of your backup power up to 30.72kWh max, as easy as stack a battery on one the other.
IP65 rated for outdoor installation
Compatible with all leading inverters
PYTES self developed BMS, 10 years tested.
Accurate & StableScalable & Sustainable
6000 Cycles @90% DOD>95%
Round-trip efficiency
Remote Firmware Upgrade
10 Year Warranty
Delivery from Pytes warehouses located in California, Texas and Washington
O-Rings Rubber Seal
O-Rings Rubber Seal

https://www.eastnewmaterial.com/O-Rings-Rubber-Real.html

The O-rings rubber seal is suitable for installation on various machinery and equipment in the specified temperature, pressure and different liquid and gas media. It plays a sealing role in a stationary or moving state. A large number of various types of sealing components are employed in machine tools, ships, automobiles, aerospace equipment, metallurgical, chemical, engineering, construction, mining, petroleum, plastic and agricultural machinery. O-shape rubber seals still play a good sealing and shock absorption role in the oil, acid and alkali, grinding, chemical erosion, and other environments. Therefore, the O-shape rubber seal is one of the most widely used seals in hydraulic and pneumatic transmission systems.
HV48100
https://www.pytesess.com/High-Voltage-Battery/HV48100.html
https://www.pytesess.com/industry/HV48100-high-voltage-battery-ideal-for-multiple-functions.html
https://www.pytesess.com/industry/Can-a-battery-pack-inside-the-high-voltage-battery-pack-be-replaced-if-it-is-damaged.html
IP20 protection grade cabinet distributed energy storage system, integrating battery pack, high voltage control box, and battery management system.
It can be widely used in charging stations, buildings, factories and other scenarios to realize the functions of peak shaving, emergency power backup, and weak system pv power storage.