Hi,here does the power cord insert in the invacare TPO120?

You have to get in behind it and see why it pushed back in? Then you can push it back out or re-fix it, or get a new charging socket.

Invacare Corporation - Parts Catalogue

Invacare http://www.invacare.ca > inv_catalog > partsPHII_home
Parts Catalog. Invacare Home ' New Search. Choose Product Category. Product Category, Beds and TSS, Power Wheelchairs & Scooters, Manual Wheelchairs ...

Invacare® Pegasus Series

Invacare http://invacare.ca > doc_files > Pegasus Owners ...
PegasusMETRO, PegasusPRO en Scooter ... 7.2.4 How to disconnect the batteries after charging. ... liquids may require replacement of electrical components.
66 pages

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Parts suppliers including Invacare themselves, although their website is down for maintenance.

https://www.google.com/search?q=Invacare+3G+Storm+Series+Tourque+SP+replacement+footrests

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If it only has an output voltage of 1.4 volts, it sounds like it has failed internally. Take it to an Invacare service centre or retailer and ask them to check it. My guess is that it need replacing. Here is the manual for it, and it states, 24 volts at 8 amps or 10 amps depending on country of issue. It charges 12 x 2 volt lead acid cells at the same time, cleverly making sure you can't use a standard 12 volt car charger.
https://www.invacare.co.uk/sites/gb/files/csv_migration/product_docs/technical_docs/DTEC012618_1636951~C_OptiCharge_UM.pdf

You can get them on eBay and Amazon

Invacare 1123249 8 Amp Battery Charger; AC Power Line Cord

https://www.amazon.ca > Pronto-Nutron-Series-Battery-...

24V 8A Battery Charger with XLR Connector for Jazzy 1450, invacare tdx 3, Invacare Pronto M51, Wheelchair, Sunrise Medical, Quickie, Drive Medical Electric ...
Rating: 3.7 · ‎4 reviews

invacare 24 volt battery charger products for sale ' eBay

https://www.ebay.com > invacare-24-volt-battery-charger

Get the best deals on invacare 24 volt battery charger when you shop the largest online selection at eBay.com. Free shipping on many items ' Browse your ...
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hi, sounds like the batteries are too weak, do they appear to charge okay ?

regards

Throw away

The M91 has an onboard charger. When unplugging the charger power cord from the wall outlet does not stop the chair from being in the charge mode, The charger has to be unplugged from the wheelchair wiring harness or main control module under the plastic body parts. The on-board chargers fail like this sometimes.

The battery charger for this scooter is available from:

http://www.monsterscooterparts.com/

I believe the original equipment charger from Invacare for this scooter was a 3 Amp off board or on-board charger. The charger is no longer available from Invacare. Monster scooter parts shows this as a 2 Amp charger for the Lynx.
It would be more expensive to repair this charger than to replace it since you indicate it failed after a storm power surge. You will be happier by replacing the off-board or on-board charger for a price between $50 and $150. The only cost effective charger repair is the cord or plugs.
If the charger was plugged in during the storm, I would check the power path on the scooter for burnt fuses and wiring. Hope this helps.

At Wally World (Wal Mart) any computer type plug will work Hope this helps

Hi. We can supply, but try your local Invacare dealer. If you have luck, send us an email,
[email protected]

Hi. Most probably its the throttle pot ( Wig Wag ) thats causing the problem. I am an Invacare service agent and I have changed these many times for this very reason.Also check motor brushes are not worn down or jaming. Good luck. Neil.