5000W Outdoor Mobile Power Pure Sine Wave Inverter DC12V 24V 60V 72V to AC220V 110V for Lithium Battery

Product Overview

The L5000I sits at the top of our outdoor mobile power range. It holds 5000 W continuously and carries 10,000 W for 5 ms — a window that decides whether a fridge compressor, an air-conditioner or a well pump starts cleanly or trips the unit into protection. Input is 12 V, 24 V or 48 V from a lithium bank; output is 110 VAC ±10% or 220 VAC ±5% at 50 Hz or 60 Hz ±1%, with total harmonic distortion under 3%. In practice this is a dc to ac power inverter sized for the loads that sent you looking for a large one in the first place.

We build it in Nanjing as a power inverter manufacturer with our own full-power development platform and pilot base, not as a trading house relabelling someone else's carton. Protection thresholds, fan logic and the cooling path on this model were set for continuous duty in vehicles and site cabins — expedition campers and welfare vans, work trucks, off-grid cabins, telecom shelters, electric utility carts and industrial vehicles running large house banks.

Key Features

• Pure sine wave output, THD below 3% — induction motors, compressors, pumps and switch-mode power supplies see a waveform close to mains, so they run at normal temperature instead of buzzing, derating or overheating on a stepped or square wave.
• Soft start on every switch-on — the output ramps up rather than slamming into whatever is already connected, which keeps downstream breakers and the unit's own protection from tripping when a heavy inductive load is attached at power-up.
• Fan speed set by temperature and output power — the fan stays low or off until the heatsink warms or the load climbs, so a lightly loaded unit stays quiet at night in a camper while a fully loaded one gets its airflow early rather than late.
• Built-in DC fuse — a reversed connection blows the fuse instead of the power stage, turning a wiring mistake into a field-replaceable part rather than a return.
• Overcurrent and short-circuit protection — output faults are caught before they reach the switching devices, and the unit recovers within a second once the fault is cleared.
• Conversion efficiency above 86% at 13 V, 88% at 26 V and 90% at 52 V — at this rating a few points of efficiency is hundreds of watts of heat that either leaves through the heatsink or sits inside the case, so the figure is a thermal decision as much as a runtime one.
• A 12 V build that stays practical — the 12 V DC power inverter version delivers the same 5000 W from a single 12 V bank, which suits vehicles already wired for 12 V and not worth converting, at the cost of the heaviest DC current in the range.
• One control design across all three bank voltages — protection behaviour, fan logic and the DC power inverter board are shared between the 12 V, 24 V and 48 V builds, so a mixed fleet behaves the same way whatever the bank voltage.

Specifications

Load Sizing and Peak Power

Two figures decide whether an installation works: 5000 W continuous and 10,000 W for 5 ms. The continuous figure is what the unit will hold indefinitely without derating. The peak figure is inrush headroom — the instant a motor or compressor pulls several times its running current before the rotor turns. A dc to ac power inverter without that headroom either trips on start-up or refuses to start the load at all, which is why the peak window is quoted in milliseconds rather than seconds.

Add up what will actually run at the same moment, in watts, at the worst point in the day. A 5000 W budget covers, for example, a medium air-conditioner with lights and electronics running alongside it, but a kettle, a microwave or an induction hob each take a large share on their own. Motors are the trap: a pump or compressor rated at 1 kW of output can pull close to three times that for a fraction of a second, and two of them starting together can use the whole peak window even when their running load looks comfortable.

The battery side is where a unit of this size is really decided. At full output the DC current is roughly 100 A on a 48 V bank, 200 A on 24 V and 400 A on 12 V before losses, so the pack, the BMS and the cable all have to deliver that continuously, not just at the moment you measure it. A large-format lithium pack with a BMS rated above the continuous current, short heavy cable and a fuse at the battery end is the standard arrangement.

Nothing on the DC side behaves like a dc power supply. There is no regulated output to dial in and no assumption that the input sits at one fixed voltage: the converter follows the bank across 10.6–15.5 V, 21.2–31 V or 42–61.8 V and holds 110 V or 220 V AC on the other side, which is exactly what a bank sagging under a heavy load needs.

Installation and Commissioning

1. Mount the unit on a rigid metal surface with clear space at the fan inlet and outlet. Keep it away from the battery's vent path, fuel lines and heat sources, and leave enough room to reach the DC terminals with a torque wrench.
2. Size the DC cable to the current at your bank voltage. The 12 V DC power inverter build carries the highest current of the three and needs the heaviest cable and the shortest run; a 48 V system allows a lighter, longer cable for the same output.
3. Fit an external DC fuse or breaker at the battery end, in addition to the built-in fuse, rated to protect the cable rather than to match the inverter's peak.
4. Land the DC cables with the correct polarity and torque the terminals to the lug manufacturer's figure. Reverse polarity blows the internal fuse, so check polarity twice before the first connection.
5. Bond the chassis to the vehicle or installation earth to whichever local code applies to your build.
6. Wire the AC side: confirm the socket type suits the country of use and that the 110 V or 220 V output matches the appliances, then keep AC and DC runs physically separated and grommet every bulkhead crossing.
7. Commission without load. Switch on, confirm output voltage and frequency with a meter, then add loads one at a time and watch case temperature and fan behaviour over the first hour.
8. Run the plan past our engineers before you energise a large bank. As a power inverter manufacturer we review cable, fusing and BMS settings with customers every week, and that ten-minute check beats chasing a nuisance shutdown at the end of a build.

Protection and Alarm Behaviour

• Low-voltage warning before shutdown — the red LED lights and the buzzer sounds while the bank is still above the cut-off, so there is time to switch off a load instead of losing the whole supply without notice.
• Undervoltage cut-off with automatic recovery — the unit shuts down when the bank drops below its floor and restarts by itself once the voltage climbs back, which suits unattended cabin and site installations.
• Overvoltage cut-off with automatic recovery — the same red LED and automatic restart apply when the input rises above the working window, typically because a charger or a second source has pushed the bank high.
• Overload at 112%–114% — the LED lights and the unit shuts down; restart it manually after removing the excess load. On a 5000 W DC power inverter this window is deliberately tighter than on our smaller models, because at this level a two-point margin is already 100 W of extra stress on the switching devices and on the DC cabling.
• Overtemperature protection — the output stops and the red LED stays on until the heatsink cools, after which the unit recovers without intervention. A blocked fan or a badly ventilated locker is usually behind it.
• Short-circuit behaviour — the unit recovers automatically within 1 second; if the fault is still present it shuts down after 1 second and waits for a manual restart, which stops a dead short in a cable from destroying the output stage.
• Reverse polarity — the fuse blows. Correct the wiring, replace the fuse and the unit is back in service.
• Input tolerance built for real banks — the converter follows the bank across its full working window rather than expecting the fixed feed a dc power supply is designed around, so sag under a heavy load does not drop the AC output.

Model Configurations

Ordering and Delivery

1. Confirm the bank voltage rather than the vehicle's nominal voltage. 12 V, 24 V and 48 V are the standard builds; other DC levels — 36 V, 60 V, 72 V, 96 V and 110 V among them — are made to order.
2. Confirm the AC side in one go: output voltage, frequency and the socket type for the destination market. Sockets for various countries can be specified, and 120 V and 200 V outputs are available alongside the standard ranges.
3. Send the load list and the bank details with the enquiry. As a power inverter manufacturer we would rather check continuous load, inrush and bank capability before the order is released than explain a return three months later.
4. Check the DC power inverter against the space you have: the case size is in the specifications above, it ships as one unit per carton of 665 × 285 × 240 mm, and the packed weight runs between 14 kg and 15.4 kg depending on configuration.
5. Once the configuration is fixed, confirm order quantity, lead time, payment terms and freight with your sales contact — the carton dimensions above are what your forwarder will ask for.

Battery Bank Coordination

Two protection layers, one order of operation. A lithium pack with its own BMS and this inverter both watch the same DC voltage, and the most common integration mistake is letting them act at the same moment or in the wrong order. The inverter gives its own warning first: the red LED and buzzer at 10.5 ±0.3 V on a 12 V build, 21 ±0.6 V on 24 V and 42 ±1 V on 48 V, then an undervoltage shutdown at 9.5 ±0.2 V, 19 ±0.3 V or 38 ±0.5 V, with automatic restart once the bank climbs back to 12.1 ±0.3 V, 24.4 ±0.4 V or 47.7 ±0.4 V. Set the BMS discharge cut-off slightly below the inverter's shutdown point so the inverter is the layer that acts first and the BMS stays in reserve. Reverse the order — BMS set above the inverter threshold — and the AC output disappears with no warning at all, which is exactly the behaviour that gets reported as a fault.

Current is the other half of the agreement. At 5000 W the DC draw is roughly 400 A on a 12 V bank, 200 A on 24 V and 100 A on 48 V before losses, so the pack, the cabling and the BMS continuous discharge rating all have to carry that figure, not the number printed on the inverter case. Ask as well about the BMS overcurrent trip. The 10,000 W peak lasts only 5 ms and sits well inside most delayed trip windows, but an instantaneous threshold set close to the continuous rating can still open the contactor on a hard motor start.

A hard disconnect is not a normal shutdown. When a BMS opens its contactor under a 5 kW load, the input falls to zero in one step instead of through the inverter's controlled sequence. Do that repeatedly and the front end takes stress it was never asked to absorb. Shed the largest loads as the bank approaches its floor, and treat the BMS as the last line of defence rather than the working cut-off.

No data link, so plan for a manual reset. This dc power inverter has no CAN connection to the pack; coordination happens entirely through the two sets of voltage settings. Some lithium BMS units latch off after a protection event and wait for a charger or a button before they reconnect, while others close again on their own. The inverter recovers automatically from undervoltage, but if the BMS is latched the AC output stays off until somebody resets the pack — worth confirming before an unattended cabin or site shelter relies on it.

Temperature narrows the window. The L5000I is rated for –10 °C to +50 °C operation, with –40 °C cold startup as a build option, but the BMS temperature window is usually the tighter of the two. If the pack limits discharge current when cold, a full 5 kW load can exceed that limit while the bank voltage still looks healthy on a meter.

Send us the bank chemistry, nominal voltage, BMS continuous and peak discharge ratings, cut-off and recovery set points, and the largest single load you plan to start. We will check the model configuration and the cut-off values against them before the order is released.

Maintenance and Service Routine

1. Read the fan first. It is driven by temperature and output power together, so on a lightly loaded unit it idles or stops; if it starts running hard within minutes of a light load, the grille or heatsink is already restricted and an overtemperature shutdown is on its way.
2. Clear the intake and exhaust every month in dusty work — straw, sawdust, workshop grit, road spray. Blow the fins out with dry compressed air at low pressure while holding the fan still, and never with water, solvent or a pressure washer.
3. Check the DC terminals once a year: correct torque to the lug manufacturer's figure, and look for discoloured insulation, bright metal or heat marking at the lug. A warm terminal is a loose terminal long before it becomes a burnt one.
4. Walk the cable run at the same time — every bulkhead crossing, the fuse holder, and the external fuse at the battery end. Keep one spare internal fuse of the same rating on the shelf: reverse polarity is the one fault that consumes it, and a spare turns a return shipment into a five-minute fix.
5. Run a load test annually with a meter on the AC output, confirming the rated output voltage and frequency under a known load. Drift here usually supports a connection or a load problem rather than the inverter, and the test is faster than diagnosing it mid-trip.
6. Stay inside the published operating and storage envelope: a closed locker in direct sun can run far hotter than the outside air, so keep the ventilation path open and shade the locker where the build allows.
7. Store it dry in the off-season with the DC cables disconnected, and let a cold unit reach room temperature before energising it. Condensation on a cold board at first power is a classic and entirely avoidable failure.
8. Log every shutdown with the LED state, the load that was running and the ambient temperature at the time. That three-line record usually separates a blocked fan, an overloaded socket and a bank sagging below its floor before anyone has to open the case.
9. Beyond the fuse, the unit is not field-serviceable. Do not open the housing to look for a fault: there are no user parts inside, and a case opened in a dusty workshop is how a small fault becomes a large one.

Technical Support & Model Matching

Buying power-conversion hardware rarely fails on the unit itself; it fails on the match. Tell our engineers the input and output voltages, the current your load draws and how the unit will be controlled and mounted, and they will confirm the right configuration or quote a customized one. Lincoren has run its own full-power R&D platform and pilot base in Nanjing since 2010, so selection, wiring and commissioning questions go to the people who designed the unit, not to a call centre. Fault diagnosis and replacement support continue after delivery.

FAQ