Product · Stackable ESS

10kWh Battery

The 200Ah brick stores 10.24kWh — the size at which home storage stops being backup-only and starts shifting a household's daily solar energy into the night.

Ten kilowatt-hours is the working size of home storage: enough to carry a typical household's evening and night load, enough to matter against a solar array's daily curve. This module delivers it as a single 51.2V 200Ah brick — 10.24kWh nominal, about 140kg, 600 × 500 × 619mm — rated at 6,000 cycles or more at 80% depth of discharge.

The system data matches the rest of the stackable range: a 5kW inverter stage with 120Vac pure sine output and 10ms switching, PV input to 5,500W across a 125–450Vdc MPPT window, mains or generator charging to 40A and hybrid charging to 100A, and parallel operation of one to six units in single or three phase. Two bricks make a 20.48kWh system; three reach 30.72kWh — territory where off-grid and whole-home-backup briefs become realistic without leaving the residential product line.

For distributors, the 10kWh brick is usually the volume unit: it is the answer to the most common brief ('cover my nights, keep my essentials through an outage'), it ships as one handled unit rather than a kit of parts, and its datasheet closes the technical questions — voltage windows 37.5–54.5V / 40–58.4V, storage −10 to +45°C, communication RS232/RS485/CAN — before the sales conversation starts.

BMS monitoring interface of the 10kWh stackable battery — cell voltages, state of charge and alarms over RS232, RS485 and CAN — Battery management monitoring interface: the brick's BMS reports cell voltages, state of charge and alarm status to a host computer over RS232, RS485 or CAN.

Specification Plate

Key specifications

Battery module	51.2V 200Ah · 10.24kWh nominal
Dimensions / weight	600 × 500 × 619mm · approx. 140kg
Cycle life	6,000 cycles or more (80% DOD, 25°C)
Communication	RS232 / RS485 / CAN
Inverter output (system)	5,000W · 120Vac single-phase · 50/60Hz · pure sine wave · 10ms
PV input	Max. 5,500W · 22A · 500Vdc Voc · MPPT 125–450Vdc
Parallel capacity	1–6 units (single / three phase)
Max. hybrid charging current	100A

Figures are the manufacturer's published data for this range. The written quote states the exact configuration of your build.

Why It Earns Its Place

Features

The whole-home threshold size

10.24kWh per unit moves a system from essentials-only backup into daily solar shifting and full evening coverage.

Same system, bigger brick

Inverter, PV and communication data match the 100Ah brick — mixed briefs are engineered from one datasheet family.

140kg of steel and cells

A floor-standing unit built for plant rooms and garages, with the mass where it belongs: in the cells.

Expansion without redesign

Parallel to six units — a 61kWh ceiling on the residential stack before the rack range takes over.

10kWh vs two 5kWh bricks

Both routes reach the same energy. One 200Ah brick means fewer enclosures, fewer interconnects and a smaller footprint; two 100Ah bricks mean finer expansion steps and units one installer can move more easily. The factory builds both; the quote will lay the two configurations side by side against your room, your loads and your expansion plans rather than pushing the bigger ticket.

Ordering & OEM

How ordering works

Minimum order quantities and lead times depend on the product type and the degree of customisation: standard products can start from smaller batches, while custom housings, labelling and packaging are assessed per project. Samples can be arranged, with sample and freight costs confirmed against the requirement. Every enquiry is answered with a written specification and quote stating the model, configuration and terms - nothing about an order here is left to chat messages.

Improve Battery runs OEM/ODM alongside its standard range, and ships with the export documentation each model carries (CE, RoHS, FCC, MSDS, UN38.3 types as listed per datasheet; certificates available upon request). State the model, voltage, quantity and destination in the enquiry form and the sales team in Shenzhen will reply with the full specification.

Questions

Frequently asked

How long will 10kWh run a house?

It depends on the load, not the battery: at a 500W average evening draw, roughly twenty hours; at 2kW, about five. The application pages show the arithmetic with real load lists.

Can it pair with my existing solar inverter?

Systems publish RS485/CAN communication and full inverter data. Send your inverter model in the enquiry and the pairing is confirmed in writing.

Is three-phase possible?

Yes — parallel configurations cover single and three phase. State the supply type in the enquiry.

Stackable Battery Systems 5kWh Stackable Battery Server Rack Battery Whole-Home Backup

Tell us the model. We price it in writing.

Model, voltage, quantity and destination - that is all a real quote needs.

Quote the 10kWh Brick