Lithium Pack Charging Question

[Rickochet]

Originally Posted by cgtech

Don't put a sb50 on a powerwise QE, it requires the temp sensor to be present with the stock charge port to work.

I removed the stock charge port so I guess the powerwise is out. I thought all that was in the stock port was the reed switch. All I remember is a white wire, black wire and red wire for the reed switch.

[cgtech]

Oh yeah, yours is the older 36v version of the QE. Sorry, it's been a long time since I seen one of those that worked. I think you will find 3 wires inside the charger handle.

[Rickochet]

Originally Posted by cgtech

Oh yeah, yours is the older 36v version of the QE. Sorry, it's been a long time since I seen one of those that worked. I think you will find 3 wires inside the charger handle.

My cart is an '07 PDS and had the "D" shape charger plug. All I see in the plug are the two RADS (?). If all I see in the plug are a white and black wires any clue about polarity?

I seem to be one of the few who has had good luck with the little QE. The dealer gave me charger options and I chose the QE for portability reasons. It never missed a beat until I converted to lith.

[cgtech]

White = Positive
Black = Negative

[Rickochet]

Originally Posted by cgtech

White = Positive
Black = Negative

Thanks for your help.

[Rickochet]

Originally Posted by NCPW

Before buying that one I would first contact Neli through email to be sure they're out of stock. They've been having since website issue as of late from what I'm told and I ordered a lot of things to assemble my own pack that showed were out of stock but after emailing Neli she had them on hand and shipped them out promptly.

I got an email from Neli and what they show on their website is what they have which is very little. No 36v chargers at all.

[NCPW]

At least you know now.

I think using the stock charger under watchful eye to get voltage where you can charge with the lithium charge is your best route. It should only take a couple minutes so be careful.

[Rickochet]

Originally Posted by NCPW

I think using the stock charger under watchful eye to get voltage where you can charge with the lithium charge is your best route. It should only take a couple minutes so be careful.

Neli recommended a 1-2 amp charger to bring the voltage up. I see some on ebay made for ebikes and various stuff. I just found this one on Amazon. It is a 36v 1.5a lith charger with a 42v termination. I can easily put a SB50 on it to match my pack. Any clue on how long it would take this charger to go from 33v to 36v? Mfgr. told me it would charge anything above 30v.

https://www.amazon.com/gp/product/B0...Z9G0O06PW&th=1

[PingEye3]

Originally Posted by Rickochet

I have one of the assembled lithium packs from EVBatteryCenter in my cart and got the 4amp charger that goes with it. I have been very careful not letting the voltage get too low on the pack because supposedly that 4 amp charger will not turn on if the pack is under 35. I know the pack was 37.5v when I used it last week but on the morning I was leaving the lake I parked it at 34v. No issue for the pack since you supposedly can run them down to 25v, but my charger may not start. I was looking at one of these since it already has an SB50 that matches my pack charger plug. The one shown is for 5a. I was planning to use this to bring voltage up to where my lith charger will start and use the lith charger it to bring the pack to normal termination voltage. Any comments from anyone would be appreciated. EVBatteryCenter has an 11a charger that does turn on at lower voltages but they are out of stock. https://www.ebay.com/itm/36V-36-Volt...0AAOSw7Bda9T3U

That 5A charger on eBay will do the trick. Nick @ EV had told me to use an old 36V powerwiise charger and I have rescued two packs from very low voltage with it. But I would recommend this instead of the 25A that the 36V powerwise puts out. Better to bring them back up slowly. Then plug your lithium charger back in and the pack should recover fully. Good luck

[Rickochet]

Originally Posted by PingEye3

That 5A charger on eBay will do the trick. Nick @ EV had told me to use an old 36V powerwiise charger and I have rescued two packs from very low voltage with it. But I would recommend this instead of the 25A that the 36V powerwise puts out. Better to bring them back up slowly. Then plug your lithium charger back in and the pack should recover fully. Good luck

Thanks for the info. How about the 1.5a charger I just posted about from Amazon? The only question I have is how long will this take to bring my voltage up to 35-36v.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1