How To Fix Vax ONEPWR Battery Not Charging?- 5 Fixes!

Vax ONEPWR is a great removable battery pack that works with various cordless vacuum cleaners. I’m using a Vax ONEPWR Blade 4 cordless vacuum that gives approx 80 minutes of run time on a single charge.

But yesterday, I noticed that my VAX ONEPWR battery flashes red and won’t turn on.

I removed the battery pack from the vacuum cleaner and plugged it into the charger, but unfortunately, there was no sign of charging.

When I contacted the Vax customer support team, they suggested a few troubleshooting that fixed the charging issue of my Vax ONEPWR lithium-ion battery.

I will share those troubleshooting methods in this guide. If you follow them correctly, your battery pack will start charging again.

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Why is My Vax ONEPWR Battery Not Charging?

There are several reasons why your Vax OnePWR battery is not charging. It includes a faulty charging station, a completely drained battery, a faulty wall outlet, and defective battery cells. The life of OnePWR lithium-ion batteries is 400 charge cycles which means they will last for 1.5 to 2 years.

So, if your battery pack is not too old, here are a few easy fixes for the charging problem…

How To Fix Vax OnePWR Battery Not Charging?

Here’s how I fixed the charging problem on my Vax OnePWR Lithium-Ion Battery-

Step #1– Take a multimeter and set the knob to 20V DC. Now, connect the black wire of the multimeter to the right side pin of the battery pack and touch the red wire with the other pins individually.

Any voltage reading will ensure the positive and negative terminals of the battery. Here is a video tutorial on recognizing any battery pack’s positive and negative terminals.

Step #2– Once you know the positive and negative terminal of the Vax OnePWR battery pack, jump it with another good battery. This will energize the dead Li-ion cells.

To jump, take a speaker wire and connect the negative terminal of the good battery with a bad battery, followed by the positive terminals. Keep the wires connected for 10 to 12 seconds; this will reset your Vax OnePWR battery pack.

Step #3– Disconnect the wires and immediately put your Vax OnePWR on the battery charger.

If there are no major faults like dead cells or faulty circuits, this solution will fix the charging problem in most cases. I also fixed the charging problem with this method.

I followed the same steps with my DeWalt Li-Ion battery pack, and it started charging again. I recommend you to read that guide for detailed steps that I followed.

Other Methods To Fix Vax ONEPWR Battery Charging Issue?

The problem is usually only with the charger and charging pattern. So, follow these solutions to diagnose and fix the issue-

1- Plug and Leave

The battery would have completely drained if you ignored the red led flashing when vacuuming the floor.

And it will not charge until you plug it in for at least 3 hours. So, plugin your Vax ONEPWR into the charger and leave it for at least 3 hours.

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2- Try a new outlet

If the outlet is not working, then your battery won’t charge. Check if the indicator light turns on when you plug the charger into the outlet.

If it doesn’t turn on, then find another wall outlet and try to charge your Vax ONE PWR battery.

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3- Try a new charger

If you still can’t charge your battery, it’s probably the charger that has gone faulty. Try a new charger to check whether your OnePWR Li-ion battery pack is charging.

Click here to check the price of OnePWR Fast Charger on Amazon

4- Contact support

Vax ONEPWR batteries are designed for 400 charge cycles. After completing 400 cycles, the batteries lose their capacity and create charging problems.

When you unscrew the battery pack, you’ll find a series of five 3.7V cells of 1800mAh capacity. You can contact the customer support team for a battery replacement if it’s under warranty.

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Final Words

I hope this guide helps you fix the Vax ONEPWR battery charging issue. If you have any other queries, contact the Vax customer support team. They are always keen to help their customers.

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