BMS are unreliable, cause endless problems with
ruined cells for a bunch of different reasons, cause fires and worse. And finding one that
allows a few hundred amps to drive a powerchair up a curb without it cutting out or
failing at the worst possible moment is a nightmare too due to the way they work. For a
number of quite technical reasons you really do not want a generic BMS!
Fortunately if you know what you are doing you
don't need one. They serve no purpose in a
properly designed SYSTEM as the chairs controller and cell balancing charger
take over all the jobs the BMS would have previously been doing.
But these do so properly in proportional controlled way and much more accurately. Nothing
cutting in or out or repeatedly going over voltage as it charges for hours on
Lithium used CORRECTLY forms part of a thought out integrated
propulsion system. Its not a battery you just buy and fit where some lead
batteries came out!
HERE THE BATTERY IS BEING BENCH
TESTED BEFORE INSTALLATION >
This is a cell balancing 550 Watt HOBBY
charger. It charges this battery super accurately @ 3.600v per cell
@ 20 Amps, 46.80 Volts.
It uses an Anderson 50A connector + a 15
pin OBD11 connector to balance all the cells accurately as it
This charger works at home or from 12V
to 24V so it can charge your chair from your car as you drive.