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MEGA VLOG 713: F3 maintenance! (tires, bearings, batteries.. etc..)

MEGA VLOG 652: i got a quantum! (and it broke immediately)

SECRET To Reviving Dead Portable Tool Batteries | Super Easy!

How A Car Battery Works - basic working principle

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MEGA VLOG 720: "VOLT PRO" - what we know so far.. (wheelchair charger data!)

VLOG 543: old crusty wheelchair parts!

Westinghouse dual fuel 9.5-12.5kw Generator

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HOW TO REVIVE DEAD 6V, 12V BATTERIES THAT WON'T CHARGE

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HOW TO RECOVER 100% - AGM BATTERY

SHOP CLASS EP2: how permobil legrests work!

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How Batteries Work - Battery electricity working principle

VLOG 719: setting up the test setup! (battery charger test rig)