You will never see this question again. i have a 24 volt battery (29.4 volts) 450 watt motor, here's my question, can i charge it with an 18 volt laptop charger, 2 amps, connections the same, secondly can i charge it with a 18 volt, maxium 24 volt solar panel? need an answer by tomorrow please

No

No but it is very cheap to buy a buck boost amplifier that will use your inputs and boost them to charging values , just 4$-5$, even better get somethinglike this, MPT-7210A Aluminium Alloy LCD Display MPPT Solar Panel Charge, this handles your battery safely with a CC-CV charging circuit on output and an MPPT input circuit to efficiently use the solar panel power.

I use portable solar panels to collect solar energy from the sun. I can charge USB devices directly from them or save power in a portable power supply for the future. The portable solar panel has a wide range of power outputs for powering and recharging important devices, devices and electronics directly from a portable charger. I constantly use a portable device, because it is very economical and convenient.

no

What did you come up with to fix it? Be Well, Bluesfrog.