Growatt APX 5.0P-B3 – battery module 5 kWh to the system APX 2.0
Growatt APX 5.0P-B3 is a battery module with a capacity of 5 kWh, which is expanding the high-voltage energy storage Growatt APX HV Battery 2.0 (system designation APX 5.0-30.0M-S3). Each added module adds 5 to the system kWh capacity and 2,5 kW of charging and discharging power. One master module can accommodate from one to five modules APX 5.0P-B3, which gives a column with a capacity of 10 to 30 kWh.
Before you add to cart: Growatt APX 5.0P-B3 is an expansion module, nie Standalone energy storage. It has no control system, DC disconnect switch, or communication with the inverter—these functions are performed by the master module. Growatt APX 5.0M-B3If you're building a warehouse from scratch, you'll need one master plus that many modules. APX 5.0P-B3how many kilowatt hours do you want to have over the first 5 kWh.
Expert opinion
The expansion module is the cheapest kilowatt-hour in the entire system—and that's the correct way to look at it. The control electronics are paid for once, in the master module. Each subsequent 5 kWh It's just the cells, housing, and latches. Therefore, when planning your installation, it's worth asking not "how much should I buy now," but "how much will the column ultimately hold?"—because adding a module after a year is cheap, but replacing a system that's too small with a larger one isn't.
The second thing to know when expanding: power increases with capacity. Each module APX 5.0P-B3 This adds an additional 2,5 kW, up to the ceiling set by the master electronics—10 kW in a single-phase system and 15 kW in a three-phase system. A system with two modules will deliver 7,5 kW, and with four, 12,5 kW in three-phase. This can be more important than the storage capacity itself if the storage system is to support the facility during a grid outage.
And third, a practical thing: the module weighs 45 kg. This is a two-person setup. When wall-mounting, the manufacturer requires checking the wall's load-bearing capacity for the weight of the entire system and recommends floor mounting—for a full column, 30 kg. kWh we are talking about 278 kg.
An observation from our assembly, not from the datasheet: the modules are connected with latches that close without tools, and adding another module to the column is quick and intuitive. Weight is a separate issue from difficulty—2 people need to lift 45 kg, but simply attaching a module isn't an operation you have to sit down and do.
— Technical team PVGroup.pl
When to reach for Growatt APX 5.0P-B3
- Expansion of the existing warehouse APX 2.0 — you add a module to the column without replacing the master and without reconfiguring the inverter.
- Building a system with target capacity 10, 15, 20, 25 or 30 kWh — one master plus 1, 2, 3, 4 or 5 modules, respectively.
- Increasing the emergency power supply capacity — each module is +2,5 kW, so the expansion of capacity also increases the backup power.
- Installations with a heat pump or car charger, where evening consumption exceeds what a single module will cover 5 kWh.
- Company facilities built on a cascade of several columns - extension modules then constitute the majority of the order.
The most important features Growatt APX 5.0P-B3
- 5 kWh rated capacity in a 265 mm high module - the lowest element of the column.
- Cobalt-free LFP cells — from the catalog card: Cobalt Free Lithium Iron Phosphate (LFP).
- Contact assembly — the module is placed on the column and screwed on the sides; no wiring is run between the modules.
- Module-level optimization — the system manages each module separately, instead of aligning the entire column to the weakest one.
- Mixing new and older modules within one system - manufacturer's declaration from the catalog card APX HV Battery 2.0. The card does not specify how far back this compatibility extends, so before upgrading, please check the nameplates of the installed modules.
- IP66 and operating range -20°C…+55°C with heating foil, natural cooling.
- Shipping within 24 hours and 10-year manufacturer's warranty.
How many modules to add - capacity, power and dimensions of the column
The table shows what each subsequent module changes APX 5.0P-B3 added to one master module. Dimensions include the base, and the weight applies to the entire system - it's worth keeping this in mind when choosing a mounting location.
| Expanding the column with modules APX 5.0P-B3 | ||||
|---|---|---|---|---|
| Number of modules | Capacity | Max 3-phase power | Dimensions (W×H×D) | System weight |
| 0 (master only) | 5 kWh | 2,5 kW | 590 × 425 × 255 mm | 53,2 kg |
| 1 | 10 kWh | 5 kW | 590 × 690 × 255 mm | 98,2 kg |
| 2 | 15 kWh | 7,5 kW | 590 × 955 × 255 mm | 143,2 kg |
| 3 | 20 kWh | 10 kW | 590 × 1220 × 255 mm | 188,2 kg |
| 4 | 25 kWh | 12,5 kW | 590 × 1485 × 255 mm | 233,2 kg |
| 5 (maximum) | 30 kWh | 15 kW | 590 × 1750 × 255 mm | 278,2 kg |
In a single-phase installation, the maximum system power stops at 10 kW (from the third module added). The peak power lasts 10 seconds and ranges from 3,5 kW for the master module alone to 21 kW for the full three-phase column. The overall system power is limited by the maximum charge and discharge power of the inverter and the battery capacity.
The limitation of the number of modules in a column results from the construction: one column is a maximum of six modules — one master and five extensions — for both floor and wall mounting. If you need more than 30 kWh, a second or third column is built with its own master module and connected in a cascade via the CAN bus. A separate communication cable is required for the cascade. APX M-S3, purchased separately.
What does it work with?
Growatt APX 5.0P-B3 works exclusively in the system APX 5.0-30.0M-S3, i.e. together with the master module APX 5.0M-B3The master is responsible for communicating with the hybrid inverter via the RS485 or CAN bus. Installation instructions APX 2.0 lists three inverter families Growatt:
- Growatt MOD 3-15KTL3-HU — three-phase hybrid inverters 3–15 kW (including MOD 6000TL3-HU, MOD 12KTL3-HU).
- Growatt MID 29.9-50K-HU — three-phase hybrids for corporate applications (MID 50K-HU).
- Growatt MIN-XH2 (version with RJ45 port) — single-phase inverters.
Because the expansion module does not have its own interface to the inverter, when expanding an existing installation, the communication cabling is not changed - the additional module is plugged into the column and the inverter simply sees the larger capacity.
Key specifications
| Growatt APX 5.0P-B3 — specification | |
|---|---|
| Type | expansion battery module, HV (LFP) |
| Door Line | APX HV Battery 2.0 (APX 5.0-30.0M-S3) |
| Capacity (module) | 5 kWh |
| Cell chemistry | Cobalt Free Lithium Iron Phosphate (LFP) |
| Battery class | high voltage (HV) |
| Management / BMS | in the master module APX 5.0M-B3 (expansion module does not have its own) |
| Number of modules | 1–5 per master module |
| Development | +5 kWh and +2,5 kW per module, up to 30 kWh in the column |
| Level of security | IP66K |
| Assembly | wall or floor mounted |
| Working temperature range | −20°C…+55°C (heating foil as standard) |
| Cooling | natural |
| Dimensions (W×H×D) | 590 × 265 × 255 mm |
| Weight | 45 kg |
| Warranty | 10 years |
| Contents of the package | module, warranty card, M4×9 stainless steel screws (3 pcs.) |
| Producent code | APX 5.0P-B3 (SKU 99645) |
Values from the catalog card Growatt APX 5.0-30.0M-S3, revision 202607, and from the installation instructions APX 2.0. Voltages and currents are system parameters, not those of an individual expansion module—you'll find them on the master module's datasheet. The manufacturer does not provide depth of discharge (DOD), round-trip efficiency, or cycle count on this datasheet.
Certificates and standards
System catalog card APX 5.0-30.0M-S3 lists: IEC62619 (cell and pack), IEC60730, IEC62477-1, IEC62040-1, CE (EN61000), UN38.3, IEC60529, REACH, and CEC. The list is copied from the manufacturer's document without any additions; certificate files are sent upon request, e.g. for tender documentation.
Installing the expansion module
Adding a module Growatt APX 5.0P-B3 To the existing column, the module is mechanically placed in the column and secured with screws on both sides, without running cables between the modules. For floor mounting, the first battery module is placed on the base. Since the master module is factory-assembled to the base, the base must be unscrewed from the master module (three screws) and moved to the bottom of the column for the first expansion. The master module always remains at the very top.
Rules common to the entire system, from the manufacturer's instructions:
- Service clearances: at least 300 mm on the sides, at least 150 mm in other directions.
- The battery is mounted below the inverter or near its air inlet; mounting near the air outlet is prohibited as it leads to power reduction.
- Outdoor installation requires a roof to protect against direct sun and rain.
- For wall mounting, the wall's load-bearing capacity must be confirmed for the weight of the entire system; the manufacturer recommends floor mounting.
- Tightening torques: M4 - 1 N m, M6 - 2 N m.
- Before working: disconnect the AC circuit breaker, the DC circuit breaker of the inverter and the DC circuit breaker on the master module, wait two minutes.
After adding the module, the system is activated by pressing the start button on the master module. The charge status and operating power are then displayed in the app. ShinePhone and the portal ShineServer, through the inverter to which the storage is connected.
Expansion and profitability
In a modular system, the first kilowatt-hour is always the highest cost—it includes the control electronics, disconnect switch, and communication. Each subsequent 5 kWh from the module APX 5.0P-B3 costs less because it only adds capacity. From a net-billing perspective, what matters is how much energy can be transferred from hours of overproduction to evening consumption: the greater the capacity, the less energy is returned to the grid at the market price and then returned to the home at the sale price through distribution.
The practical limit of usefulness is the daily consumption after dark plus some reserve for cloudy days. A heat pump or car charging system will typically use 15–20 kWh; a typical household without these receivers will rarely use more than 10 kWhThis is a selection estimate, not a catalog value—we confirm specific selection based on the wear profile.
Download
- Growatt APX 5.0-30.0M-S3 — catalog card (EN)
- Growatt APX 5.0-30.0M-S3 - installation instructions (EN)
About the brand Growatt
Growatt is one of the world's largest manufacturers of photovoltaic inverters and energy storage systems, present in the PV market for over a decade, with an extensive service network in Europe. PVGroup.pl we offer equipment Growatt from official European distribution, with full documentation, European service warranty and technical support in Polish. Family APX is a high-voltage storage line Growatta; generation 2.0, to which it belongs APX 5.0P-B3, replaced the system with a separate box BMS a structure in which the control is located in the master module.
Why is it worth buying at PVGroup.pl
- Original equipment from official European distribution — full documentation and certificates.
- Confirmation of compatibility with your system — we check whether the added module will fit into your column before we issue an invoice.
- Verification of expansion before ordering — send a list of installed modules, we will confirm the list.
- Net prices with wholesale discount for installers and integrators after logging in.
- Sales representative managing the order from quotation to delivery.
Delivery, warranty and B2B support
The battery module weighs 45 kg, and the package contains only a warranty card and three M4x9 screws, with the entire mounting hardware and base shipped with the master module. When ordering multiple modules at once, it's worth mentioning this when negotiating a shipping quote. We ship via Raben, DPD, or Dachser within Poland and the European Union. Lithium cells are subject to dangerous goods transport regulations (UN3480), so the shipment is shipped with the appropriate shipping documentation. Manufacturer's warranty for Growatt APX 5.0P-B3 is 10 years; we provide service under the European service warranty.
Most frequently asked questions
Czy Growatt APX 5.0P-B3 will it work without a master module?
No. Growatt APX 5.0P-B3 This is an expansion module without its own control system, DC disconnect switch, or inverter communication. It requires a master module to operate. APX 5.0M-B3, which supports the entire column.
How many modules APX 5.0P-B3 can I add to one master?
From one to five. A full column is six modules total—one master and five extensions—or 30 kWh capacity. Above this value, further columns are built and connected in a cascade to three systems.
How much does the storage capacity increase after adding a module?
Each module adds 2,5 kW of charging and discharging power. The ceiling is set by the master module's electronics: 10 kW in single-phase installations and 15 kW in three-phase installations.
Can I contribute? Growatt APX 5.0P-B3 to the older magazine APX?
Modules marked B3 belong to the system APX 2.0 (APX 5.0-30.0M-S3) and work with the master module APX 5.0M-B3The manufacturer states that it is possible to mix new and older battery modules within a single system, but before purchasing, please send us the nameplate markings of the installed modules – we will confirm the combination instead of guessing.
How much does the module weigh and can I mount it on the wall?
The module weighs 45 kg and its dimensions are 590 × 265 × 255 mm. Wall mounting is permitted, but requires confirmation of the wall's load-bearing capacity for the weight of the entire system - full column 30 kWh weighs 278,2 kg. The manufacturer recommends floor installation.
What links does it have? Growatt APX 5.0P-B3?
The datasheet lists cobalt-free lithium iron phosphate cells— Cobalt Free Lithium Iron Phosphate (LFP) . This is the same chemistry as in the master module, so the column remains homogeneous.
Is the module suitable for outdoor installation?
Yes, the protection rating is IP66, and the operating temperature range is from -20°C to +55°C thanks to the heating foil. The manufacturer requires a roof to protect against direct sunlight and precipitation, and to maintain service intervals.
Do I need to reconfigure the inverter after adding the module?
Communication with the inverter is carried out by the master module, so adding the module APX 5.0P-B3 does not change the communication cabling. After expansion, the system is started using the start button on the master module.
What is the warranty on Growatt APX 5.0P-B3?
The manufacturer declares a 10-year warranty on the system APX 5.0-30.0M-S3. IN PVGroup.pl a European service warranty applies, serviced from Poland.
How does shipping a lithium battery work?
The module is shipped on a pallet via Raben, DPD, or Dachser, with the required shipping documentation for dangerous goods classified as UN3480. We ship within Poland and the European Union.
Order Growatt APX 5.0P-B3
Battery module Growatt APX 5.0P-B3 It's in stock and ships within 24 hours. Installers and integrators see net prices with a wholesale discount after logging in. If you're expanding an existing warehouse, specify how many modules you have installed; if you're building from scratch, add the master module to your cart. Growatt APX 5.0M-B3 and as many expansion modules as the number of kilowatt-hours the installation is to have.
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