Inverters

[Figaro]

I have a 1500 watt modified wave inverter fitted and it's been ok for the limited uses I have for it.
But today I thought I'd see if it would charge my ebike battery.
I plugged in the charger, no battery connected, and it began buzzing so I unplugged it quickly.
I guess it's not suitable for this use ?

So I looked at Victron and they describe their compact phoenix pure sine wave inverters as 1200VA or 2000VA
So my question is are these watts ?
TIA

 

[Tombola]

1va is 1 watt on dc

 

[Jev88]

I would be tempted to plug it in with battery connected and see if it works? Inverter should alarm and shut down if you ask too much of it?

 

[Pausim]

A pure sine wave is less likely to cause problems and run more efficiently.

 

[Reallyretired]

I have a 1500 watt modified wave inverter fitted and it's been ok for the limited uses I have for it.
But today I thought I'd see if it would charge my ebike battery.
I plugged in the charger, no battery connected, and it began buzzing so I unplugged it quickly.
I guess it's not suitable for this use ?

So I looked at Victron and they describe their compact phoenix pure sine wave inverters as 1200VA or 2000VA
So my question is are these watts ?
TIA

Not exactly but close. An expert will no doubt soon be here to explain the difference.

^{_{Subscribers  do not see these advertisements}}

 

[Toady]

My Victron 2000 W inverter/charger is great at charging the electric bikes.

 

[Figaro]

I was hoping not to spend 600 pounds though, lol
I'll try mine tomorrow with the battery attached as suggested by Jev88

 

[DBK]

I was hoping not to spend 600 pounds though, lol
I'll try mine tomorrow with the battery attached as suggested by Jev88

I would double check the cost of replacing the charger before you try that. If it doesn't like running on no load I suspect it will be even less happy when asked to charge a battery.

I bought a 1500W pure sine inverter for about £150 and I've checked its output on an oscilloscope and it is a smooth sine wave. It has worked faultlessly. Link in my signature below.

 

[Jev88]

Still not cheap at £359 (but have some offers on from time to time). Performed faultless so far.

https://www.sunshinesolar.co.uk/Item/VP1500

 

[Figaro]

I would double check the cost of replacing the charger before you try that. If it doesn't like running on no load I suspect it will be even less happy when asked to charge a battery.

I bought a 1500W pure sine inverter for about £150 and I've checked its output on an oscilloscope and it is a smooth sine wave. It has worked faultlessly. Link in my signature below.

Just checking I understand, you mean replace the ebike battery charger to use with the existing modified wave inverter ?
What would I need to look for in buying the new one ?

I'll take a look at your inverter, that could be an option

^{_{Subscribers  do not see these advertisements}}

 

[pappajohn]

Just checking I understand, you mean replace the ebike battery charger to use with the existing modified wave inverter ?
What would I need to look for in buying the new one ?

I'll take a look at your inverter, that could be an option

No, he means the cost of replacing the charger after the inverter makes it release the magic smoke ........(blows it's guts out)

 

[Kannon Fodda]

Ebike charger won't be happy with modified sine wave. Few electronics like that.

Pure sine wave us needed. For an ebike charger even 300W should be ample and its only other things that would make you fit but more expensive bigger inverter.

 

[Chrisvh]

Still not cheap at £359 (but have some offers on from time to time). Performed faultless so far.

https://www.sunshinesolar.co.uk/Item/VP1500

Managed to get one on offer. Very pleased with it. No problems charging 2 x Ebike batteries.

 

[Raul]

I have a 1500 watt modified wave inverter fitted and it's been ok for the limited uses I have for it.
But today I thought I'd see if it would charge my ebike battery.
I plugged in the charger, no battery connected, and it began buzzing so I unplugged it quickly.
I guess it's not suitable for this use ?

So I looked at Victron and they describe their compact phoenix pure sine wave inverters as 1200VA or 2000VA
So my question is are these watts ?
TIA

VA is apparent AC power. The W is active AC power absorbed by the load. The 1200va will deliver 1000w at 0,8 power factor, and the 2000va will deliver 1600w at 0,8 power factor.

 

[autorouter]

So I looked at Victron and they describe their compact phoenix pure sine wave inverters as 1200VA or 2000VA
So my question is are these watts ?

More or less, yes. If you look at the datasheet, the 1200VA can output 1000W continuous at 25 deg C, and the 2000VA can output 1600W continuous.

Technically the VA and watts are only equal if the peaks and valleys of the alternating voltage (V) and current (A) are synchronised. For simple loads like a kettle element they stay synchronised, but for complex loads like motors and some electronics they can go out of sync a bit. If you want more detail, what happens is the connected device can store a bit of charge, and it can shunt backwards and forwards and add to the amps without contributing anything useful.

^{_{Subscribers  do not see these advertisements}}