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Reviews (3)
03 Dec, 2020
My 1st "smart charger"
I have a car battery charger. An old transformer thing that can do upto 5 amps. It never delivered more than 2 into anything.
With countless alarm gel cells, the lawnmower 45Ah flooded, motorbike sealed 12ah and the car AGM it was no use anymore.
As an electronic engineer I have designed a good number of battery devices and vehicles and have ££££ of equipment that can charge batteries. This is no good however long term.
Victron are a name I have used in the past for serious vehicle projects and never had an issue.
It just works. Even after years of neglect it still works.
The charger is waterproof, so can be used beside the vehicle.
The user can set the charge values for any kind of lead battery.
The device can act as a full current PSU for flashing ECU while the battery is connected.
Bluetooth app connects to PC Software as well as phone apps.
Measures charge Ah. For tracking battery health.
2 current levels makes even the 15 amp charger useful for small batteries (4 amp output mode)
Battery recovery works from 0 volts. So if you do not have a bench PSU and know what to do.... it is the only option.
Custom float voltage so you could fit and forget.
The app at first appears limited. In reality it does everything it needs to, and well.
The Graph mode is a waste of time as it is static and conveys almost no information.
Realtime readout is excellent and simple v/I out.
History gives the Ah input and total. Excellent for checking the state of a cycled battery.
Custom profiles and advanced settings let you set exactly the conditions for the battery in use and there are a number of useful presets there too.
Stays cool.
Fit and forget.
Can be tuned up for the application.
Not just a charger but a PSU too.
Historic readout excellent.
Can be used without bluetooth.
Only downside..
Perhaps the crock clips are a bit poor. However they function just fine.
I expected the 15 amp guy to be too much for the small batteries I use but there are no problems as the output is stepped.
Batteries also draw current at the supplied voltage. Not absorb supplied current, so you are better with the larger supply as regardless you can set voltage limits on the charger. Unless you are only charging small batteries and the expense is too much.
That is: if the charger can only put out 16 volts and the battery has a set internal resistance.. you can only get out a proportional current. The maximum current possible is limited by the charger current output (high or low) but this can Always be restricted by the adjustable charge voltage.
Is it worth it... the charger cost me £97 new. A 15 amp multi mode charger. For £0.08 of electricity I have recovered a £65 battery. A further £0.10 has confirmed the car battery is in good health (a £180+ part).
I can monitor UPS batteries at £20 each and condition the bike battery. (£70).
Don't be a plumb. Get the correct tool for the job. For PB batteries (12 volt in this case) this IS the tool.
Note. I have made measured discharge devices and have accurate measuring equipment to help condition batteries. This is a charger and is therefore only 1 tool of a number needed, as well as knowledge of the subject.
For capability and ease there is no rival here.
18 Mar, 2022
9kw PTC heater. It works
Everything has it's limits. I took a plump on this as a PTC heater should never get too hot and seeing small single phase ones I was amazed at how small they were. This is obviously a different animal.
Compared to a 15kw element heater it moves a lot more air, so the fan makes more noise. It is comparable to the dehumidifier I have in the same space but you can comfortably talk next to it. Perhaps not suitable for quiet telly viewing though.
The fan runs all the time and has a run on to cool the unit when the switch is set to off.
At full heat you can hold hands just off the grille and it is hot but not burning.
Circulated hot air is immediately noticeable up to 8 ft away (2.4 meters) after that you need to wait for the space to warm.
After 2.5 hours it had not lifted enough to trip the thermostat at mid setting. This is in a double garage. 7 meters X 4. Pitched slate roof and some insulation poorly fitted. (I will be sorting this directly now) about 2 degrees C outside. Detached building.
I was warm in there. Think tee shirt but not shorts.
The heater does not need a neutral despite coming with a quality 5 pin (16 amp) plug.
It's well made but not built like a tank. It is a light heater. No stainless as it runs cool.
The case is touch cool when operating.
Heat is not projected much to the sides at the front, so 2 meter clearance is not needed.
The equipment beside the heater (1 ft away) either side was room temperature.
So it heats the air blown through and is not an IR heater. It uses force convection.
Looking at the design it uses 2 phases for heating on low setting. Marked as 6kw. This equates to 14.5 amps on those 2 phases.
Full heat uses all 3 phases and the current drops as a result to an estimated 12.5 amps.
I intend to meter this as soon as I have a battery for the clamp meter.
I have it fed via 1.5mm 3 core swa (fused to 15 amps) and there was a noticeable temperature rise on the (short) cable run. But not hot. Only warm, so this would stack up.
There is little adjustment of the angle up or down. Tabs are fitted to limit movement. This will be a safety thing. Fine on clean concrete floors but there to prevent sucking crap into the elements or setting fire to the floor. It still outputs 9kw of energy.
The flex is h07 rubber 2.5, 4 core and just over 1 meter long. So you probably need an extension or a suitable table at your socket.
As a note, it stirs the air rather than blows it, despite the fan noise.
You don't get heat from miles away like big fuel heaters either.
The switches are nice and work fine. There is a relay inside that does the leg work.
Overall. For the money it is made well enough and thought through.
Can run on a 4 pin plug.
Heats the space fine.
Makes more noise than the older element heaters.
Runs much cooler.
Keep it away from harm and run at full power and it should last a good while without stress on a single point.
Can it be converted to run 220/230 volts? No
Does it need all 3 phases? Yes.
How many amps per phase? 15.
11 Apr, 2025
Brilliant. All fits the bill and works j...
Brilliant. All fits the bill and works just as well. Thanks.