Battery generator

Power without a combustion engine: no exhaust, no refuelling, no idling noise. Portable at 230 V, and 400 V three-phase when run as a bank — for demolition, installation, dewatering and night work.

Three questions before you buy

How much load runs at the same time? Add up the input ratings of the tools that run in parallel — not every tool in the yard.
How long must it run without recharging? Runtime is usable capacity divided by actual load. Doing that division once shows whether one unit is enough or the combustion unit has to stay.
Does any equipment need 400 V three-phase? Then the answer is a bank of three units, not a larger single-phase box.

Limits worth knowing beforehand

Standalone operation for days: without grid or recharge, a combustion generator still wins. A battery covers shifts, not weeks.
Load held at the ceiling: headroom is there for starting currents, not for hours at the limit.
Three units plus cabling weigh more than a can of diesel — transport, cabling and theft protection belong in the plan.

P-series parallel power systems

One modular platform. Add parallel units where the load grows — two or three units single-phase, or three units for 400 V three-phase.

Configuration	Units	Rated power	Usable capacity	Weight	Output
P25	1	2,500 W	2.7 kWh	29 kg	230 V / 16 A · single-phase
P25 + P25-D	2	5,000 W	5.4 kWh	≈60 kg	230 V · single-phase · AC230V/20A output
P25 + P25-D	3	7,500 W	8.1 kWh	≈90 kg	230 V · single-phase · AC230V/30A output
P25 + P25-T	3	7,500 W	8.1 kWh	≈90 kg	400 V · three-phase · AC400V/10A output

P25
Units
1
Rated power
2,500 W
Usable capacity
2.7 kWh
Weight
29 kg
Output
230 V / 16 A · single-phase
P25 + P25-D
Units
2
Rated power
5,000 W
Usable capacity
5.4 kWh
Weight
≈60 kg
Output
230 V · single-phase · AC230V/20A output
P25 + P25-D
Units
3
Rated power
7,500 W
Usable capacity
8.1 kWh
Weight
≈90 kg
Output
230 V · single-phase · AC230V/30A output
P25 + P25-T
Units
3
Rated power
7,500 W
Usable capacity
8.1 kWh
Weight
≈90 kg
Output
400 V · three-phase · AC400V/10A output

Wiring

The parallel distribution unit carries one power input and one data input per battery unit, and a single output to the load.

AC230V/20ATwo P25 units, 230 V single-phase.
AC230V/30AThree P25 units, 230 V single-phase.
AC400V/10AThree 230 V P25 units in parallel make 400 V three-phase — all three required, or the system loses a phase.

How the parallel link is wired

Each P25 runs one power cable and one data cable to its own input pair on the distribution unit.
The distribution unit has three input pairs (L1 / L2 / L3); one pair per battery unit.
Only the distribution unit output feeds the load. Battery units are never connected to the load directly.
Each unit keeps its own protective device; no unit back-feeds another.

Three configurations, one platform

Start with a single unit and add parallel units only when the load demands it. Every configuration runs the same battery unit and the same distribution unit.

P25
The core unit. A fanless, self-cooling 230 V power station that replaces the combustion generator on site — no exhaust, no idling noise, no fuel run.
Key figures
Rated power
2,500 W
Peak power
5,000 W (≤10 s)
Usable capacity
2.7 kWh
Output
230 V · 16 A
Protection
IP54
Weight
29 kg
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P25 + P25-D
Two or three units linked through the parallel distribution unit for 230 V single-phase loads. Power and capacity stack — start with two, add a third when the job needs it.
Key figures
Units
2–3 × P25
Rated power
5,000–7,500 W
Usable capacity
5.4–8.1 kWh
Output
AC230V · 20–30 A
Request a quote
P25 + P25-T
Three 230 V P25 units in parallel produce the 400 V three-phase supply that runs tools which will not start on single phase. All three are required — remove one and the system loses a phase. Carried and assembled by hand: no crane, no lifting gear.
Key figures
Units
3 × 230V P25
Rated power
7,500 W
Usable capacity
8.1 kWh
Output
AC400V · 10 A three-phase
Request a quote

Feature overview

Every part, numbered on the real machine — the same order as the wiring diagrams above.

P25 — the workhorse unit

Hitama P25 site power station front port panel: AC output socket, AC charging input, power switch, battery display, USB-C, solar input, parallel power and data ports — Port panel

AC output · 230 V / 16 APlug cutters, welders and drills straight in.
AC charging inputOn grid power, charge it overnight.
Power switchOne turn starts the station.
Battery displaySix LEDs — charge readable from the doorway.
USB-CKeeps phones and laptops topped up.
Solar inputFit a panel, keep charging on site.
Parallel power portPower line to the P25-D / P25-T box.
Parallel data portData line — the units stay in sync.

Hitama P25 portable power station three-quarter view: carry handle, IP54 enclosure, 2.7 kWh battery body — Body

Carry handle29 kg — carried by hand to the load.
IP54 enclosureDust-protected, spray-water protected.
2.7 kWh batteryUsable capacity per unit, fanless.

P25-D — 230 V parallel box

Hitama P25-D parallel distribution box front view: mounting hook, AC230V-30A output, breaker protection window, six parallel input ports — Front

Mounting hookHang the P25 units on the box.
EnclosureThe parallel box — ready out of the crate.
Parallel output · AC230V-30AThe only feed to the load.
Mounting stopHolds the box in place on the ground.
Protection device areaThe breakers, behind a protected window.
Parallel 1 inputP25 No.1 power line — AC230V-10A.
Parallel 1 data inputP25 No.1 data line.
Parallel 2 inputP25 No.2 power line — AC230V-10A.
Parallel 2 data inputP25 No.2 data line.
Parallel 3 inputP25 No.3 power line — AC230V-10A.
Parallel 3 data inputP25 No.3 data line.

P25-T — 400 V three-phase box

Hitama P25-T three-phase parallel box front view: mounting hook, AC400V-10A output, breaker protection window, six parallel input ports — Front

Mounting hookHang the P25 units on the box.
EnclosureThe three-phase box — ready out of the crate.
Parallel output · AC400V-10AThree-phase — the only feed to the load.
Mounting stopHolds the box in place on the ground.
Protection device areaThe breakers, behind a protected window.
Parallel 1 input · L1P25 No.1 power line — AC230V-10A.
Parallel 1 data inputP25 No.1 data line.
Parallel 2 input · L2P25 No.2 power line — AC230V-10A.
Parallel 2 data inputP25 No.2 data line.
Parallel 3 input · L3P25 No.3 power line — AC230V-10A.
Parallel 3 data inputP25 No.3 data line.

Optional accessory

Put the sun to work. A 400 W folding panel clips into the P25 solar input — charge on site, no mains. Parallel two of them: 800 W into the station.

Hitama 400 W folding solar panel for the P25 — unfolded four-section panel, folded case with orange handle, and a 3 m MC4 cable

Optional

Folding Solar Panel 400 W

One panel, 400 W. Folds flat, carries by hand, plugs into the P25 solar input. Parallel two panels — 800 W charging the station together.

Max. power (Pmax): 400 W
Voltage at Pmax (Vmp): 72 V
Current at Pmax (Imp): 5.56 A
Open-circuit voltage (Voc): 86.4 V
Short-circuit current (Isc): 5.89 A
Max. system voltage: 1000 V
Connector: MC4
Frame: ETFE
Protection: IP54
Weight: 9.1 kg
Size, folded: 612 × 590 × 50 mm
Size, unfolded: 2230 × 590 × 25 mm
Operating temperature: -40 °C to +70 °C
In the box: 3 m connection cable

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For dealers and rental fleets

OEM and ODM: we work with partners on such projects — from custom logo printing to an adapted configuration.
Custom logo printing is available.
Tell us configuration, voltage and volume; we confirm feasibility, any tooling required, and the lead time.

Where it replaces the combustion generator

Indoors, in tunnels and in shafts where exhaust cannot stay.
Night work and residential areas: no engine noise, no idling for hours.
No refuelling, no oil changes, no cold start in frost — it stands for months and is still ready to run.
Fanless cooling with no intake opening, so dust and chips have nothing to clog.

Datasheet and dealer terms

Technical data, conformity and transport conditions are in the datasheet. To size a system we need three things: the tools and their input ratings, the runtime you need, and whether 400 V is required.

Frequently asked questions

The questions buyers actually ask before a first order — answered with numbers from our own datasheets, not from a brochure.

Is a battery generator a generator?

In outcome yes, in construction no. Nothing drives a generator; storage is discharged through an inverter. Hence no fuel, no engine, no exhaust — and no maintenance on oil, spark plug or exhaust.

What does a battery generator cost to run?

Electricity instead of diesel, plus the charging effort. What matters are the utilisation days: no refuelling, no oil change, no cold start. For rental, turnaround counts, not the price per litre.

Which power class suits which model?

It depends on continuous load, voltage and runtime, not on a single figure. Tell us the loads and the duration; the mapping to P-series or C24 follows from that.

Does the unit charge more slowly in cold weather?

Charging at frost is limited; discharge still works. For winter operation that is the relevant difference to a generator: it does not start worse, it only charges more slowly.