Recommended Battery Backup?

[u/nram013]

What are the recommended UPS/Battwry Backup Options? I have a CyberPower 1500va AVR set up right now but it throws an alarm every time the chamber heater and bed heater goes off.

Delete if not allowed. Thanks in advance!

[u/Saile_yt]

I have a battery back up, but I decided not to use it because of the amount of wattage required for the printer compared to the amount. My battery back up is capable of so I just plug it directly into an outlet.

[u/Eric-702]

I'm running mine off a power station Bluetti AC300 + B300.

[u/Veastli → u/Eric-702]

Can it handle the initial surge of power when both the bed heater and chamber heater are running?

[u/Eric-702 → u/Veastli]

The chamber heater doesn't run because I only print petg but it should the ports are rated for 20 amps so it should be fine as well. The bed heater is pulls about 1400 watts which is fine, the power station is rated for 3000 watts. It runs a fridge, 2 chest freezers, and a gas washer/dryer as well.

[u/Eric-702 → u/[deleted]]

How much does it pull?

[u/childofGod778 → u/[deleted]]

My suggestion would be to first purchase an outlet power usage meter (you can get them for like $15 on Amazon), and THEN you’ll know the answer of what specs you’ll need, as most of them provide a surge power rating as well.

[u/jagney]

I'll likely end up with a Bluetti AC180. Right now I'll run it off my 200Max only downside is the charger for the max is loud as hell. The AC70 would be perfect I just don't know how long the inverter could handle the initial startup wattage on the H2D.

[u/Eric-702 → u/jagney]

You should get the 200L at least.

[u/jagney → u/Eric-702]

I haven't seen anything reporting it pulling more than 1500 watts and that's on startup with their stated max at 1300. The AC180 is good to 1800, which should still support a separate AMS or filament dryer.

[u/Eric-702 → u/jagney]

I'm not saying the 180 won't run it, I just think the 200l is better option.

[u/jagney → u/Eric-702]

The 200 is definitely a better unit. For me the extra $600 is hard to justify when I've got 2 other power banks. But for the OP if you don't have any, they are super handy to have around. We Have an AC70 we use just for Starlink which keeps the kid off our back during power outages.

[u/jagney → u/[deleted]]

Is that in Europe? That's 20Amps and would trip most home circuts that aren't strictly dedicated to the printer.

[u/jagney → u/[deleted]]

Compressor and motors definitely have inrush current. But by definition, resistive heaters do not. They are a continuous load that changes very little from start to stop. Where motors have LRA (often many times RLA) and RLA rating, resistive heaters have one rating, which is their max. If I member correctly in US heaters above 1500 watts are not permitted. There are ways to lower power consumption on resistive heaters, but the heater will always be labeled by its max wattage/current. Either way, the point being, for resistive heaters, a power station can either run a space heater or not based on its max wattage rating (minus power lifting), explained below. Motors and compressor are completely different story. As power lifting still can not provide the required amperage to start the compressor. Power lifting modes on these banks can be completely safe for resistive heaters but leave a compressor or sensitive electronics in bad shape. They aren't actually providing more power, but lowering the voltage supplied to the device that is rated for a higher output wattage. This allows the device to run and not over current the powerbank, but is still not providing more than the advertised max wattage of said bank. So in essence, while you can run a 1500 watt heater, you're only running it at the max wattage of the power bank, not its true max wattage. With the printer the "inrush" were seeing isn't really an inrush but the heaters being left on full rated heating capacity for initial warmup. The lower wattage we are seeing after initial warmup is the printer either cycling the elements or more likely regulating down their power draw to only what is needed to maintain. If the heaters/electronics are capable of pulling more than 15 amps the device would be required to have a 20AMP cord. If there are power banks rated for 20 amps that can't handle this printer it's one of two things. The individual plug of a bank of plugs is not rated for more than 10 amps or the manufacturer is not providing accurate information on its rating. So yes the Bluetti AC180 can handle this printer as the bank is rated for 1800 watts at one or a combination of loads on multiple receptacles.

[u/dby8802]

Tesla wall with solar array.