Can you monitor a DC charger from your phone?
6 min read
On the DD range, yes. It publishes app monitoring over RS485, WiFi or Bluetooth, with the interfaces listed as optional, and an external remote switch control for charging. The 12V 20A to 60A range publishes no data interface, so on that range you monitor the charger by measuring at the battery rather than by looking at a screen.
What monitoring actually buys you
Charging problems are usually invisible until a battery is flat. An input voltage that is too low, a panel that never rises above the battery, a charger derating in a hot locker, a control wire that is not switching: all of them look identical from the driver's seat and completely different on a live readout. Monitoring is what turns a diagnosis into a measurement.
What our ranges publish
| Range | Published interface | How you watch it |
|---|---|---|
| DD4048 / DD6048 and DD20048 | RS485, WiFi or Bluetooth, listed as optional, with app monitoring | Phone or laptop, live |
| DD range control | External remote switch control for charging | A switch or a signal, not a readout |
| DC-DC Battery Charger, 20A to 60A | None published | A meter at the battery terminals |
The four readings worth watching
- Input voltage while the engine runs, compared with the published window: 12V to 16V for an intelligent generator and 13.2V to 16V for a traditional one on the DD range.
- Panel voltage against the leisure battery, if the model has a solar input: the DD range publishes a start-up condition of two volts above the battery, so the gap tells you whether the array is working.
- Output current against the battery's state, because a current that falls away is the profile finishing rather than a fault.
- Temperature, since derating is published behaviour and a hot locker explains a sudden drop in output.
If your range has no interface
The 12V 20A to 60A range publishes no data interface, so the honest way to monitor it is with a meter and a routine: input voltage at the charger while running, then charge current at the battery, then the same readings a week later. That is slower than a screen and it answers the same questions.
Frequently asked questions
- Do all your DC chargers have an app?
- No. App monitoring is published for the DD range, over RS485, WiFi or Bluetooth, with the interfaces listed as optional. The 12V 20A to 60A range publishes no data interface at all, so it is monitored with a meter.
- What should I look at first in the app?
- Input voltage with the engine running, because it settles whether the vehicle and the charger agree with each other. Panel voltage relative to the battery is the second, since the DD range publishes a two-volt gap before the solar input starts working.
- Can I control the charger remotely as well as watch it?
- The DD range publishes an external remote switch control for charging, which is a control input rather than a remote interface: it lets the installation decide when the charger is allowed to run. Watch the data over the app; switch the charging with that control.
- Is monitoring necessary?
- Not strictly, and on a range with no published interface it is not possible beyond a meter. It earns its place on the faults that only appear sometimes, where a reading taken after the fact proves nothing.
