A cordless vacuum can be a great help in cleaning up spills where there isn’t a local electricity supply. Optimizing the battery life of these cleaners is a good idea but not as simple as it might sound.
Standard Battery Packs
If your vacuum runs on standard batteries the only way to make them last longer is to ensure that there is no ‘stand by’ function on your battery powered vacuum. All you need to have is an on/off switch.
It is false economy to buy cheap batteries because they will discharge quicker and need replacing more often. Only use batteries designed for heavy-duty use.
Standard batteries often last longer when not in use if you store them outside of the equipment in which they are used. Store them close by in a cardboard box if you do not use the battery vacuum very often.
Unless the hand book for your battery vacuum advises against using rechargeable batteries, it is a good idea to try a set of high power rechargeable batteries.
Many battery vacuums that run on rechargeable batteries are designed to be stored in the battery charger. This will ensure that the batteries are fully charged at all times.
Some rechargeable batteries, especially high demand batteries, have a liquid core and should be fully discharged before being recharged. Although not so common nowadays, these batteries seem to remember the amount of charge that they last received. If you recharge such a battery after it is only one quarter discharged, you will find that, in future, it will only accept one quarter of the possible charge even if it has been fully discharged.
Switching on and off
With some circuitry, it can be beneficial to leave a vacuum running once it has been switched on. To make best use of these, you need to have all the cleaning work close by so that it can be done in one go. The demand on the battery in starting the vacuum can be many times the demand for letting it run on. This is something that will be covered in the owners hand book.
Most batteries do not function well in freezing conditions. Keep your battery vacuum stored in a cool rather than a cold location. Ideally, the battery vacuum should be stored in the room in which it is most likely to be used.
A battery that has been frozen is often damaged as a result and should be carefully checked and tested before being used. Double-check before you try to recharge a once frozen battery. Check especially for any leaks caused by the battery case splitting.
When using the portable vacuum, try to remember that it is only battery powered. Rather than trying to collect as much as possible as fast as possible, work gradually so that the motor is not put under too much strain. Slower and steady could mean the difference between having enough battery life and running out just before you finish.