If you buy regular cheap battery holders, the default wires will be very thin. They will heat up with the currents drawn by this motor, which will melt the insulation. Please be careful. As another commenter already said, match the wire gauge to the cables present in the vacuum cleaner. I tried to post a picture of what not to use, but I can’t.
What's the original capacity of these batteries? can one increase it by getting larger capacity batteries so as to get longer running time? for instance replace 4 x 2500mAh batteries with 4 x 3500mAh batteries to get 20minutes running time as opposed to 15minute stock running time, if you know what I mean?
Seems to me, changing from Ni-cad to lithium, you will need to get the Lithium charger the NiCd charger will not charge them. This is due to the ways lithium batteries charge.
So, presumably.... one would need a li-ion battery CHARGER now, correct? I grabbed one of these today from a thrift store for $3, with the thought of reversing the air current and modifying a thin pipette to the hose to make a blower for electronics. Li-ion seemed a likely scenario. Also, trying to make a home theater sound bar into a portable boom box. It’s AC powered from factory, but the PSU board converts 120vVAC to 24vDC -internally- before sending the power to the amplifier board. I have a few 12v li-po’s from some car battery pocket jumpstarters, and I hope to use those. Their bms’s were damaged (why I have the batteries) so I’m just trying to find a good charging option. Laptop, maybe? I have no real way of ordering online as I don’t have a debit card. Any thoughts, sensei? Side note, I have watched your videos several times and am very thankful for the time and effort you put into recording/narrating/editing them for us to use as references. Have fixed/upgraded many things for friends and family with knowledge learned from your channel, and hope you continue to share. The trickle-down effect is tremendous
macdaddypimpping yeah, I guess my question is more along the lines of series or parallel wiring a second battety to one that already had its own BMS. For instance, a better example... my laptop has an internal 7.4v lipo.... but it’s capacity is junk (only downside to this model) and is surrounded by open room for another. If I wired an identical 7.4v jn parallel to the same bms.... would the bms shit itself?
I followed these steps exactly and after one minute the battery case started smoking and the battery lead disintegrated (after turning red hot). That must have happened here after the video ends. Any suggestions welcomed (repeat- I followed all steps exactly). Thanks
Check the current required for the motor operation. The small wires from the battery pack can't carry the power required from the motor, i.e. the electrical load. Look at the size of the wires in the unit itself. That should be a clue. That's why yours melted. You need at least an equivalent gauge wire from the batteries.
If you buy regular cheap battery holders, the default wires will be very thin. They will heat up with the currents drawn by this motor, which will melt the insulation. Please be careful. As another commenter already said, match the wire gauge to the cables present in the vacuum cleaner.
I tried to post a picture of what not to use, but I can’t.
What's the original capacity of these batteries? can one increase it by getting larger capacity batteries so as to get longer running time? for instance replace 4 x 2500mAh batteries with 4 x 3500mAh batteries to get 20minutes running time as opposed to 15minute stock running time, if you know what I mean?
@macdaddypimpping - did you ever finish doing this conversion? Did it work properly? What did you use for a charger after the conversion?
Seems to me, changing from Ni-cad to lithium, you will need to get the Lithium charger the NiCd charger will not charge them. This is due to the ways lithium batteries charge.
So, presumably.... one would need a li-ion battery CHARGER now, correct?
I grabbed one of these today from a thrift store for $3, with the thought of reversing the air current and modifying a thin pipette to the hose to make a blower for electronics. Li-ion seemed a likely scenario.
Also, trying to make a home theater sound bar into a portable boom box. It’s AC powered from factory, but the PSU board converts 120vVAC to 24vDC -internally- before sending the power to the amplifier board. I have a few 12v li-po’s from some car battery pocket jumpstarters, and I hope to use those. Their bms’s were damaged (why I have the batteries) so I’m just trying to find a good charging option. Laptop, maybe? I have no real way of ordering online as I don’t have a debit card. Any thoughts, sensei?
Side note, I have watched your videos several times and am very thankful for the time and effort you put into recording/narrating/editing them for us to use as references. Have fixed/upgraded many things for friends and family with knowledge learned from your channel, and hope you continue to share. The trickle-down effect is tremendous
Yes, with lithium ion batteries you will need a li-po balance charger.
macdaddypimpping yeah, I guess my question is more along the lines of series or parallel wiring a second battety to one that already had its own BMS. For instance, a better example... my laptop has an internal 7.4v lipo.... but it’s capacity is junk (only downside to this model) and is surrounded by open room for another. If I wired an identical 7.4v jn parallel to the same bms.... would the bms shit itself?
I followed these steps exactly and after one minute the battery case started smoking and the battery lead disintegrated (after turning red hot). That must have happened here after the video ends. Any suggestions welcomed (repeat- I followed all steps exactly). Thanks
Mine didn't smoke unless you are using bad batteries, you might want to upgrade the gauge on your wire.
Check the current required for the motor operation. The small wires from the battery pack can't carry the power required from the motor, i.e. the electrical load. Look at the size of the wires in the unit itself. That should be a clue. That's why yours melted. You need at least an equivalent gauge wire from the batteries.
Holy shit I was about to do the same thing with my vacuum but with all this trouble wiring and so on I’ll just gonna buy a new one.
Where is Part 2?
OHHH MY GOD !!! Get to the point !!!
It is broken and can't fix it again.
So didn't work huh???
Nope!! Not for me! After watching this, it scared my "little fix it myself" out of me!!