The IKEA MULLBACKA is an interesting lighting solution for people who want more flexibility than a conventional floor lamp or table lamp can provide. Instead of relying entirely on a wall outlet, selected MULLBACKA models use a built-in rechargeable battery, allowing the lamp to be moved between different areas of the home and outdoor spaces.
This makes the MULLBACKA particularly useful for balconies, patios, gardens, terraces, bedrooms, living rooms, and other locations where a fixed power connection may not be convenient.
However, like many rechargeable products, battery aging can eventually become the main limitation. If your MULLBACKA still works properly but its operating time has become much shorter, replacing the battery may be a more practical solution than replacing the entire lamp.
This guide reviews the MULLBACKA, explains its battery specifications, and discusses what to look for when choosing a replacement.
IKEA MULLBACKA: What Is It?
The IKEA MULLBACKA is designed primarily as a portable decorative LED light rather than a high-output work lamp.
Its biggest advantage is mobility. A conventional floor lamp usually has to remain close to a power outlet, while a rechargeable MULLBACKA can be moved according to your needs.
Typical applications include:
- Balcony and patio lighting
- Garden and terrace decoration
- Outdoor gatherings
- Evening dining
- Bedside lighting
- Living-room accent lighting
- Locations without convenient power outlets
- Temporary or portable lighting
Some MULLBACKA outdoor versions are designed with IP44 protection, making them more suitable for environments where occasional splashing may occur. However, IP44 should not be interpreted as complete waterproofing. Heavy rain, standing water, prolonged exposure to moisture, and severe weather should still be avoided.
For anyone looking for an atmospheric portable lamp rather than a powerful task light, the MULLBACKA offers a practical combination of portability and rechargeable operation.
MULLBACKA Lighting Performance
One of the main characteristics of the MULLBACKA is its integrated LED light source.
Using an integrated LED instead of a conventional replaceable bulb allows IKEA to keep the lighting structure relatively compact. LED technology can also provide a long operating life. Some MULLBACKA product information lists an LED service life of approximately 25,000 hours.
That makes the MULLBACKA well suited to ambient lighting.
For example, it can work well when you want soft illumination while:
- Sitting on a balcony
- Having dinner outdoors
- Relaxing on a patio
- Decorating a garden
- Entertaining guests
- Creating a warmer atmosphere indoors
It is less suitable if your primary purpose is detailed reading, repair work, crafting, or other activities requiring strong concentrated illumination.
In other words, the MULLBACKA is better understood as a portable atmosphere light than as a professional task lamp.
The Battery Is One of the Most Important Components
For older or second-hand MULLBACKA lamps, the rechargeable battery deserves particular attention.
When an LED lamp becomes difficult to use, many owners immediately suspect the LED module or electronic control board. However, a deteriorated rechargeable battery can produce very similar symptoms.
Aging battery symptoms may include:
- Charging finishes unusually quickly
- Runtime becomes significantly shorter
- The lamp switches off shortly after being turned on
- Battery indications become abnormal
- The lamp loses a significant amount of charge while sitting unused
- The battery no longer accepts a normal charge
If the LED itself still works normally, checking the battery should therefore be one of the first troubleshooting steps.
For compatible replacements, the MULLBACKA battery is an important component to consider when restoring an older MULLBACKA.
IKEA ICBL7.2-18-A1 Battery Specifications
According to the MULLBACKA documentation provided for this model, the original battery is identified as ICBL7.2-18-A1.
Its main specifications are:
| Specification | Details |
|---|---|
| Battery model | ICBL7.2-18-A1 |
| Battery chemistry | Rechargeable Li-ion |
| Nominal voltage | 7.2V |
| Capacity | 2600mAh |
| Energy | 18.72Wh |
| Charging input | DC 8.4V / 2.0A |
| Output | DC 7.2V / 2.0A |
These specifications are important when selecting an ICBL7.2-18-A1 replacement.
Do not select a replacement simply because it is advertised as an “IKEA 7.2V battery.” Voltage and capacity are only part of the compatibility equation.
The connector, polarity, wiring, physical dimensions, mounting arrangement, and protection circuitry should also be checked against the original battery.
ICBL7.2-18-A1 vs. ICBL7.2-18-USB-A1
One important issue when shopping for a replacement is the similarity between the model numbers.
The ICBL7.2-18-A1 should not automatically be treated as identical to the ICBL7.2-18-USB-A1.
Both battery models can have similar headline specifications, including 7.2V, 2600mAh, and 18.72Wh. However, the USB version has different design characteristics, including a Micro-USB input and a different connector arrangement.
This means that matching only the voltage and capacity is not enough.
Before purchasing an ICBL7.2-18-A1 battery, compare the label and physical configuration of your existing battery carefully.
A correct replacement should match the original electrical and mechanical requirements.
Is the MULLBACKA Battery Replaceable?
Battery replacement requires more care than replacing a normal household light bulb.
The battery is not intended to be treated like a conventional user-accessible AA or AAA battery. Opening the lamp and battery assembly can expose electrical components and wiring, and lithium-ion batteries require appropriate handling.
For most users, the safer approach is to replace the complete compatible battery pack rather than opening the original pack and replacing individual cells.
A suitable IKEA replacement battery can be a practical option when the lamp is otherwise in good condition.
Users without experience working with rechargeable lithium-ion battery packs should avoid cutting battery wires, opening the battery enclosure, or attempting to rebuild the pack themselves.
Basic MULLBACKA Battery Replacement Procedure
If you have appropriate electronics repair experience, the general replacement process can be approached as follows.
1. Turn Off the Lamp
Switch the MULLBACKA off and disconnect the charger before beginning any work.
Never attempt to disconnect or replace the battery while the lamp is connected to an external power source.
2. Identify the Correct Battery Compartment
Different MULLBACKA versions may have different physical constructions.
Before opening the lamp, confirm the exact model and product version. Do not assume that the disassembly procedure for one MULLBACKA version applies to every model.
3. Open the Battery Area Carefully
Use the appropriate screwdriver and tools to remove the relevant fasteners.
Avoid excessive force because internal components may include:
- Battery wires
- LED wiring
- Charging circuitry
- Switch connections
- Seals or gaskets
If the outdoor version uses sealing components, take particular care not to damage them.
4. Disconnect the Battery
Disconnect the battery before removing it.
Do not cut battery wires while the battery is still connected to the electronics.
Lithium-ion batteries can deliver high current, and an accidental short circuit may generate significant heat and create a safety hazard.
5. Remove the Old Battery
Handle the old battery carefully.
Do not puncture, crush, bend, or heat it.
If the battery is swollen, cracked, leaking, unusually hot, or producing an abnormal odor, stop using it and do not attempt to disassemble it.
6. Install the Replacement Battery
When installing an ICBL7.2-18-A1 replacement battery, verify more than just the voltage.
Check:
- 7.2V nominal voltage
- 2600mAh capacity
- 18.72Wh energy
- Connector type
- Connector polarity
- Wire arrangement
- Physical dimensions
- Mounting method
- Protection circuitry
- Original battery label
A battery with the correct voltage is not automatically a compatible battery.
7. Reassemble the Lamp
After installing the new battery, carefully reinstall the housing and all relevant fasteners.
If your MULLBACKA is an outdoor version with IP44 protection, pay particular attention to seals, gaskets, and housing joints.
Once the lamp has been opened, its original water-resistance performance should not automatically be assumed to have been restored unless the enclosure has been correctly reassembled.
How to Test the Lamp After Battery Replacement
After installing a replacement battery, testing should be performed in stages.
Charging Test
Connect the original charger or a charging device with the correct specifications.
Check whether:
- Charging begins normally
- The charging indicator behaves normally
- The battery becomes excessively hot
- Charging stops normally
Some temperature increase during charging can occur, but abnormal or excessive heating should be treated as a warning sign.
Lighting Test
After charging, turn the MULLBACKA on and check:
- LED illumination
- Flickering
- Unexpected shutdown
- Switch operation
- General stability
Runtime Test
A short initial test does not necessarily provide a reliable indication of the battery’s full capacity.
After a complete charge, use the lamp normally and monitor whether its runtime has returned to a reasonable level.
If the lamp still switches off after only a few minutes with a new battery, the problem may be elsewhere.
Potential causes include:
- Battery protection circuitry
- Charging circuit
- LED driver
- Power connector
- Main control board
- Internal wiring
Is a Used MULLBACKA Worth Repairing?
For a second-hand MULLBACKA, battery replacement can make sense when the rest of the lamp remains in good condition.
For example, if you have:
- A functioning LED
- An intact housing
- A working switch
- A healthy charging circuit
- Significantly reduced runtime
then battery aging is a reasonable area to investigate first.
A compatible IKEA replacement battery may allow the lamp to continue being used instead of replacing the entire lighting unit.
On the other hand, repair becomes more complicated when several components have failed simultaneously.
Examples include:
- A swollen battery
- A non-working LED
- Water damage to the electronics
- Severe housing damage
- Damaged charging circuitry
- Broken internal wiring
In those situations, the total repair cost and difficulty should be considered before purchasing replacement parts.
Buying Tips for an ICBL7.2-18-A1 Replacement
When searching online, avoid relying on generic descriptions such as “IKEA 7.2V 2600mAh battery.”
Instead, search using the complete model designation and compare it with your original battery.
The key identification information is:
ICBL7.2-18-A1 — 7.2V — 2600mAh — 18.72Wh — Li-ion
The ICBL7.2-18-A1 model number should be treated as the starting point for compatibility verification.
Also compare the connector and physical dimensions before ordering.
This is particularly important because similar IKEA battery models can have different connectors or charging arrangements.
Final Verdict: MULLBACKA as a Portable Rechargeable Lamp
The IKEA MULLBACKA is best suited to users who value portability and atmospheric lighting rather than maximum brightness.
Its rechargeable design allows it to move beyond the limitations of a conventional plug-in lamp, making it useful for balconies, patios, gardens, terraces, bedrooms, and other spaces.
For older MULLBACKA lamps, however, battery degradation can eventually reduce the usefulness of the product.
The key battery model to identify is ICBL7.2-18-A1, with specifications of 7.2V, 2600mAh, and 18.72Wh.
If your MULLBACKA still has a functioning LED, intact housing, and working electronics but suffers from dramatically reduced runtime, checking the battery is a sensible first troubleshooting step.
A correctly matched MULLBACKA battery can help extend the useful life of the lamp while avoiding the need to replace an otherwise functional lighting unit.
The most important point is simple: do not choose a replacement battery based on voltage alone. Confirm the model number, connector, polarity, dimensions, wiring, and protection configuration before installation.