Battery & Charging
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Both the Voltra Pro and the Voltra Air charge with the magnetic charger in the box. If the device isn't charging, nine times out of ten it's the contacts rather than the battery - clean them and try again before anything else.
This covers charging, battery life and what to do when it stops holding charge, for both the Pro and the Air.
Charging your device
- Line the charger up with the contacts on the back of the device. It'll pull into place on its own when it's aligned correctly.
- Plug the other end into a USB port or a mains plug.
- Check for the red light. If nothing lights up within a few seconds, it isn't seated properly - take it off and put it back on.
- Leave it until the light turns green, roughly 2 hours from empty.
Here's how it attaches:
What the lights mean
| Light | What it means |
|---|---|
| Solid red | On charge and chargingThis stays on until the battery is full |
| Green | Fully chargedSafe to take off the charger |
| One green flash | The device is switched onReady to pair and track |
| One red flash | The device is switched offIt will still charge while off |
| Nothing at all | The charger isn't making contact, or the battery is fully flatLeave it on the charger for 30 minutes before deciding it's dead |
How long it lasts
- Voltra Pro - around 20 days of normal use.
- Voltra Air - around 40 days of normal use.
Those are averages. Continuous heart rate tracking, frequent syncing and cold weather all shorten it. If you're getting noticeably less than that, the section below covers why.
Checking the battery level
Open the Q Watch Pro app with your device nearby and the battery percentage shows on the device screen. The figure updates when the app syncs, so if it looks out of date, leave the app open for 30 seconds.
It won't charge
Work down these in order - they're listed by how often they turn out to be the cause.
The contacts are dirty
This is the most common cause by a distance. Sweat, moisturiser and skin oils build up on the metal contacts and stop the connection. Wipe both the device contacts and the charger with a dry cloth, or a cotton bud very lightly dampened with surgical spirit if there's visible residue. Let it dry completely before charging.
It isn't seated properly
The magnets hold it in one orientation only. If it's sitting at an angle or slid slightly off, the contacts won't meet. Take it off, line it up again and check the red light comes on.
The cable or port
Try a different USB port and a different plug. Any standard USB port or phone plug will charge it, but laptop ports and car USB sockets sometimes deliver too little power to start a charge, and some switch off entirely when the laptop sleeps. A mains plug is the reliable test.
It's completely flat
A fully drained battery takes several minutes on the charger before it shows any light at all. Leave it for 30 minutes before concluding it isn't charging.
It's too hot or too cold
Lithium batteries stop accepting charge outside roughly 0°C to 45°C. If the device has been in a cold car overnight or in direct sun, bring it to room temperature and try again.
The battery is draining faster than it should
- Cold weather. Battery life drops noticeably below about 5°C. It recovers when it warms up.
- Continuous heart rate tracking. The biggest single drain. Turning it down to periodic readings makes a large difference.
- Notifications. Every buzz wakes the device. If you have a busy phone, this adds up.
- Frequent syncing. Opening the app constantly keeps the Bluetooth radio awake.
- Age. Every rechargeable battery holds less as it gets older. A gradual reduction over a couple of years is normal.
If it's gone from weeks to days suddenly rather than gradually, that's not normal wear and we should look at it.
Looking after the battery
- Charge it in a dry place at room temperature.
- Don't leave it on the charger for days at a time. It won't overcharge, but constant topping up isn't doing it any favours.
- Don't leave it sitting completely flat for weeks. If you're not wearing it for a while, charge it to around half first.
- Keep it out of hot cars and away from direct sun.
- Stop using a charging cable that's frayed or damaged.
Still not charging
Then it's more likely a hardware fault than a setup problem, and we'll sort it. Message us with your order number and what happens when you put it on the charger - whether any light appears, and how long you left it. A ten-second video is the fastest way for us to spot it.
Gradual capacity loss over time is normal wear rather than a fault. A device that won't charge at all, or a battery that suddenly stops holding charge, is covered by your warranty and we'll replace it.
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