Is the split battery of outdoor power supply safe

Is it safe to put a power bar in another circuit?

What you should really be concerned about is stacking high power devices on the same circuit. Putting your air conditioner, microwave, refrigerator and space heater all on the same circuit is probably a bad idea no matter how you wire it. So it's not definitively 'unsafe' to plug a power bar into another.

Can a power supply split a fan?

Power supplies don't "split" anything, they just maintain their output voltage, and can supply current up to their specified maximum power capability, whatever it is. The loads are connected in parallel, and each load will take whatever current it needs. If you have a 5-V supply with 2.4 A rating, the fan will take 0.35 A, not more.

Should I buy a splitter if I have a bad connection?

That usually is when you've got a bad connection and you're also pulling a lot of power through that connection though. As long as the splitters are decent quality, and you're not running hairdryers, toasters and space heaters using them, you ought to be alright.

Should I chain power bars/splitters together?

In terms of the power bars/splitters, they'll have their own (generally lower) current ratings. So if you chain them together, you can trip safeties on the power bars/splitters themselves even though you aren't hitting the limit of your household wiring. What you should really be concerned about is stacking high power devices on the same circuit.

Is it safe to plug a power strip into an outlet?

Sensitive electronics are actually safer being plugged into those than straight into the wall, and it is safe to plug, even a "power strip" into them. "UPS Battery Backups" are always also surge protectors, so they are safe as well. In each case you are dividing your outlet, so you can't pull more than 110 from all of them combined.

Does a power supply need to stop sarcasm?

It needs to stop. I'll think of another way to formulate it. @Passerby There is always a need for sarcasm. Power supplies don't "split" anything, they just maintain their output voltage, and can supply current up to their specified maximum power capability, whatever it is.