swalker wrote:Conveniently, Revolectrix has a 15% discount on all orders over $100 through the end of this weekend. This is part of their March Madness sale.
I have a bit more than 24 hours to commit to buying a backup charger and power supply.
I am rationalizing it by thinking how nice it would be to have a backup and how nice it will be to have two chargers once I convert another wheelchair to LiFePO4.
Steve
Burgerman wrote:Buy one of shirleys...
Burgerman wrote:Buy one of shirleys...
Scooterman wrote:Burgerman wrote:Volts x Amps = watts Output.
Because Volts x Amps + 10% Approx losses = Watts input.
Remember though that the charger is both a buck and boost inverter. If you begin charging as a buck (voltage lowering) converter, and as you start to charge the battery voltage rises, it then has to stop being a buck, and switch over to boost. As it does, the battery voltage drops... So now it has to swap back. Rinse and repeat and maybe error...
ooh i never knew any of that
its currently set at 24v. Should i leave as is or up it a bit?
ex-Gooserider wrote:It appeared that the problem is that if the PL8 supply voltage is to close to the output voltage, it starts switching between buck and boost modes, which can cause errors... In that thread it was suggested that if there is an adjustment on the supply, (including ones that are nominally 'fixed voltage' but have an adjusting pot,) to set it so that the supply voltage is either well below or well above the pack voltage so that there is never a need for the PL8 to switch modes...
Burgerman wrote:Mines set to 24. Roughly...
I just spin the knob toll it reads enough for what I am doing. I have many batteries - hobby, tools, chairs, van, etc.
... the subsequent charge showed Capacity In of 110,418 mAh. That means I probably used a bit over 110 Ah in those 16.45 miles.
Scooterman wrote:I recharged after approx 60 miles (10-15 miles off-road) and returned about 120Ah.
Scooterman wrote:I recharged after approx 60 miles (10-15 miles off-road) and returned about 120Ah. But scooters use lot less power than a powerchair.
Longest road trip to date was 34 miles to windsor castle and back. Although it's not that far (about 12 miles), but I got lost . But I did get chased by an angry dog last weekshirley_hkg wrote:
Wow ! That's a hundred Km trip . Where you've been ?
swalker wrote:Especially a wheelchair with 4 motors:).
Steve
Scooterman wrote:I know, I thought it sounded boastful when I typed it, but it wasn't meant that way, sorry
shirley_hkg wrote:Scooterman wrote:I recharged after approx 60 miles (10-15 miles off-road) and returned about 120Ah.
Wow ! That's a hundred Km trip . Where you've been ?
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