How to replace the batteries on a Jazzy Jet 3 Wheelchair Like in a Video ?

Either the batteries are faulty, or you have parasitic drawer. The most likely place is one of the motors. The draw can be measured with an ammeter. Disconnect the motors one at a time and anything else that might be drawing power, console, controller etc. When you disconnect the one that is drawing power, the ammeter will show it.

It's possible that the clicking noise is being caused by a loose or worn-out component within the left drive wheel of the Jazzy 300 power wheelchair. The tightness of the wheel could also be contributing to the problem.
To diagnose the issue, you may need to inspect the left drive wheel and its components, including the motor, axle, bearings, and any other parts that may be causing the clicking noise. Tightening any loose components or replacing any worn-out parts may help to alleviate the issue.
It's always a good idea to consult with a professional technician or the manufacturer of the Jazzy 300 power wheelchair for specific troubleshooting advice and repair recommendations.

Walmart offers free shipping.

Unsure where locally is.

https://www.walmart.com/ip/Pride-Mobility-Jazzy-1122-12V-75Ah-Wheelchair-Battery-This-is-an-AJC-Brand-174-Replacement/133265346


Pride Mobility Jazzy 1122 12V 75Ah Wheelchair Battery This is an AJC Brand...

Gel Cell is always better

Majority of wheelchairs are make by two companies.
Sunrise Medical and Jazzy
You posted Jet 3 Ultra on the title.....I'm including the instruction HERE

log onto pridemobility.com and select jazzy then select user manuals then look under discontinued models and find Jet 2 you should be able to download the manual Hope this helps

acampbel I went to pride website and could only find the manual for the Jet 3 ultra. I don't know if that manual can help you but goto pridemobility.com and select Jazzy chairs, scroll down until you see the picture for the Jet 3 Ultra click on the picture and you can download the manual from that page. Hope this helps you

Make sure that your drive wheels are engaged and the power chair is not in the freehweel position (so it can be pushed).

I found this fellow to be a great help for me with one of my customers. He is in the Sacramento area:

Wheelchair Wizard
(916) 729-8349
7325 Parkvale Way
Citrus Heights, CA 95621

Look in your owners manual for the flash code anwser. Make sure when you hit the power button you only touch it for 1 sec not more. If you press the power button for more the 2-3 seconds you place the power chair in LOCK OUT mode. lights will flash and not power. also check your free wheel levers. one on each moter. Mike