The MB620 spare battery is an 18 V Li-ion cell designed for the Messersi MB620 12–16 mm battery strapping tool. When the original cell is flat or has lost capacity after months of daily use, the tool sits idle until it is recharged. A second battery lets you swap in a charged cell and continue strapping straight away, removing that forced pause from your day.
Why you need an MB620 spare battery
A battery strapping tool works only while its cell holds charge. Once the battery is empty, the tool is out of action until the recharge is complete. On a loading dock or packing line, that idle time has direct consequences:
- Pallets queue unstrapped at the end of the line
- Truck departures slip because loads are not yet secured
- Operators stand waiting with no tool to use
The problem gets worse during busy periods. When every pallet needs to ship on time, a single flat battery can stall your entire outbound flow. A spare battery for the MB620 closes that gap by putting a charged cell in your operators’ hands the moment the first one runs out.

How the MB620 spare battery keeps your tool running
The swap takes only seconds. You release the depleted cell from the tool, push in the fresh 18 V Li-ion battery, and carry on strapping. No tools or special steps are needed. The discharged cell goes straight onto the charger that was supplied with your MB620 tool.
This 18 V Li-ion cell is designed for the Messersi MB620 and locks into place without any adapter. Keeping a charged spare battery on hand means the MB620 is available for the next load whenever you need it. Rotating between two cells also distributes charge cycles across both batteries rather than wearing one out.
Which tool this spare battery fits
This 18 V Li-ion spare battery is made for the Messersi MB620 12–16 mm battery strapping tool. It is not interchangeable with batteries from other Messersi models or other manufacturers. Before you place an order, check the label on your tool to confirm it reads MB620.
What to check before you order
Make sure you have the right information before ordering:
- Confirm your tool is the Messersi MB620 12–16 mm model.
- Each order contains one 18 V Li-ion battery.
- A charger is not included; use the charger that was supplied with your MB620.
- If your original charger is missing or defective, source a replacement charger first.
Confirming these details before you order ensures the MB620 spare battery matches your tool.




