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KJ-641000W · Outdoor Emergency Power Supply
A single-configuration portable power station built on a 2009.6Wh LiFePO4 battery pack, with 1000W pure sine wave AC output, AC mains charging up to 1000W and MPPT solar input from one 150–550W panel.

Model KJ-641000W is a portable power station designed for household emergency backup, camping, off-grid sites and mobile working power. The battery section uses LiFePO4 cells with a nominal voltage of 6.4Vdc, a rated capacity of 314Ah and 2009.6Wh of stored energy, so the unit can support longer supply periods than small-capacity units. The AC stage delivers a rated 1000W pure sine wave output at 185–230Vac / 50Hz, which is the waveform sensitive household appliances and electronic devices expect. Charging is handled either from the AC mains at up to 1000W maximum charging power, or from one solar panel in the 150–550W range through an MPPT window of 15–60Vdc. The unit measures L430×W296×H157mm at 20kg net weight and is rated IP21 for indoor installation.
314Ah rated capacity at 6.4Vdc nominal voltage gives a larger energy reserve for backup and off-grid duty, with a 5.8–7.2Vdc operating window.
Rated AC output of 1000W in pure sine wave at 185–230Vac / 50Hz supports household appliances and electronics that require a clean waveform.
AC charging up to 1000W max, plus one solar panel of 150–550W with MPPT range 15–60Vdc and 550W max solar charge power.
Three 12V 2.5A DC jacks (5.5×2.1mm), one USB 5V 1A port and one Type-C 5V 1A port allow several small loads to run at the same time.
An intelligent BMS protects the pack against overcharge, over-discharge, over-current and over-temperature during charge and discharge cycles.
Integrated portable format at L430×W296×H157mm, 20kg net and 21.6kg gross, easy to move, store and ship indoors.
| Model | KJ-641000W |
|---|---|
| Rated AC output power | 1000W |
| Output waveform | Pure sine wave |
| Output voltage / frequency | 185–230Vac, 50Hz |
| Nominal input voltage | 230Vac |
| Max AC input voltage | 300Vac |
| Nominal input frequency | 45–65Hz |
| Max AC charging power | 1000W max. |
| Low cut-off / recovery voltage | 90Vac / 170Vac ±7 · 100Vac / 180Vac ±7 |
| High cut-off / recovery voltage | 280Vac ±7 · 270Vac ±7 |
| Solar panel input range | 150–550W, 1 pc |
| MPPT charging voltage range | 15–60Vdc |
| Start charging voltage | 15Vdc |
| Max charging voltage | 70Vdc |
| Max solar charging power | 550W max. |
| DC output ports | 12V 2.5A DC jack 5.5×2.1mm, 3 pcs |
| USB port | 5V 1A, 1 pc |
| Type-C port | 5V 1A, 1 pc |
| Battery energy | 2009.6Wh |
| Nominal battery voltage | 6.4Vdc |
| Rated capacity | 314Ah |
| Max charge / discharge current | 220A / 220A |
| Operating voltage range | 5.8Vdc–7.2Vdc |
| Installation site | Indoors |
| IP rating | IP21 |
| Operating temperature | -10°C to +50°C |
| Operating humidity | 5%–95% RH, non-condensing |
| Max altitude | ≤2000 m |
| Product dimension | L430×W296×H157mm |
| Package size | L505×W371×H242mm |
| Net / gross weight | 20kg / 21.6kg |
This page covers the KJ-641000W configuration: 1000W pure sine wave AC output, 2009.6Wh LiFePO4 storage, one solar input and the DC / USB / Type-C port set listed above. For buyers who need a different port mix, casing print, retail packaging, firmware parameters, communication protocol or product configuration, these are handled through the manufacturer’s OEM/ODM program described in the Customization section. Cell type and structural safety components are fixed and not open to modification.
The battery is a LiFePO4 pack using a lithium iron phosphate cathode and graphite anode, housed in a steel / aluminum enclosure. The integrated portable body holds the battery section, the AC stage and the output panel in one unit, with a footprint of 430×296mm and a height of 157mm. Rated IP21 and specified for indoor installation, the unit is intended for dry, ventilated locations within -10°C to +50°C and 5%–95% non-condensing humidity at altitudes up to 2000m.


OEM/ODM support covers casing printing and coating, retail packaging, firmware parameters, communication protocols and product configuration. The standard workflow runs from requirement confirmation to solution design, sampling in 5–7 working days, certification adaptation, mass production and global delivery. MOQ starts from 100 units; lead time follows industry-standard schedules based on order volume. Cell type and structural safety components are not open to modification, to preserve safety and batch consistency. Destination-market conformity support is available for SONCAP (Nigeria), SASO / SABER (Saudi Arabia), EAC (CIS), INMETRO (Brazil) and SNI (Indonesia).
1000W rated output in pure sine wave form, at 185–230Vac / 50Hz, with a nominal input voltage of 230Vac.
Two methods: AC mains charging at up to 1000W maximum charging power, and one solar panel of 150–550W through the MPPT input (15–60Vdc, start voltage 15Vdc, max charging voltage 70Vdc, 550W max solar charging power).
A single panel rated between 150W and 550W whose output voltage falls inside the 15–60Vdc MPPT window and does not exceed 70Vdc.
Three 12V 2.5A DC jacks with 5.5×2.1mm plugs, one USB port at 5V 1A and one Type-C port at 5V 1A.
Indoors, rated IP21, at -10°C to +50°C, 5%–95% relative humidity non-condensing and altitudes up to 2000m.
The intelligent BMS protects against overcharge, over-discharge, over-current and over-temperature, with 220A maximum charge and discharge current.
Yes. UN38.3 Test Report RLCT2604057-01 from Rhenish-Lab covers the LiFePO4 pack under UN ST/SG/AC.10/11 Rev.7, Subsection 38.3.
MOQ starts from 100 units, sampling takes 5–7 working days, and customization covers casing print, packaging, firmware and configuration. Products carry a 5-year warranty with spare-parts supply and remote technical support.
Zhongshan KangJun New Energy Technology Co., Ltd. · Building 6, Qifang Industrial Zone, Tongyi Industrial Park, Guzhen Town, Zhongshan City, Guangdong Province, China.
Contact: Joy / Mr Ou · Email: joyyiwei@foxmail.com · Tel: +86-13410198535 / +86-15900042963 · WhatsApp: +86 13512344323 / +86-15900042963
Please confirm target quantity, destination market, required plug and socket standard, solar panel specification and any packaging or firmware requirements when sending an inquiry.