Need a new lithium pack

[simicrintz]

Originally Posted by WalterM6

All I paid was the price listed plus $63 tax. Free shipping.

That's awesome! I had no idea and when I saw that crazy numbers went through my head!

[DaveTM]

Originally Posted by NCPW

Why are you replacing your Leaf modules?

Originally Posted by Left Coast Kiteboarding

Yes, do tell. I'm curious why and how many miles or charges you had etc.

Me as well. (Or is that "Myself too"?)

[flyons78]

Originally Posted by WalterM6

I just ordered these batteries to replace my Leaf batteries. With the proper BMS these will be as close to drop in as you can get w/o the high price. Drawback: It takes up to 90 days to get.

https://www.aliexpress.com/item/4001...49e0108b4B1OEy

Wow, now you've piqued my curiosity. What would be the proper BMS for these?

[st91ang]

Originally Posted by flyons78

Wow, now you've piqued my curiosity. What would be the proper BMS for these?

I'm looking to do something similar with 200AH batteries. My use case is a little different as I want the cart batteries to also be UPS for my house while it is plugged in.

This is the BMS I'm looking at https://www.chargery.com/BMS16Pro.asp
Hope that helps.

[WalterM6]

Wow, now you've piqued my curiosity. What would be the proper BMS for these?

The BMS I've selected is listed below. Feel free to comment pro or con. Here are the reason I selected it. One, price. When I ordered it it was $95 total. Two, It can handle the full discharge current. It is rated for 200A constant current and 600A discharge overcurrent. Three it has the same Bluetooth interface I am used to using. Four It appears to have a built in current monitor for accurate SOC readings. Fifth it only has 2 connections and your all set. Comes with 4AWG wires. Well you still need to connect charger and 48-12v converter.

https://www.aliexpress.com/item/4001...archweb201603_

[PingEye3]

Originally Posted by WalterM6

The BMS I've selected is listed below. Feel free to comment pro or con. Here are the reason I selected it. One, price. When I ordered it it was $95 total. Two, It can handle the full discharge current. It is rated for 200A constant current and 600A discharge overcurrent. Three it has the same Bluetooth interface I am used to using. Four It appears to have a built in current monitor for accurate SOC readings. Fifth it only has 2 connections and your all set. Comes with 4AWG wires. Well you still need to connect charger and 48-12v converter.

https://www.aliexpress.com/item/4001...archweb201603_

Nice find there Walter, I think I'll order one and give it a try on a future pack.

[WalterM6]

Several people have asked me why I am replacing my Leaf Batteries. The main reason would be safety. While I feel they are safe for me to use I feel that they may become a hazard if they wound up in a uninformed persons hands. Besides I've always wanted these LiFePo4 batteries. When I started looking to upgrade a few years ago these batteries were 2-3 thousand dollars and almost that much for shipping. Now I can afford them and I want to be the first kid on the block to have them.

[flyons78]

Originally Posted by WalterM6

Several people have asked me why I am replacing my Leaf Batteries. The main reason would be safety. While I feel they are safe for me to use I feel that they may become a hazard if they wound up in a uninformed persons hands. Besides I've always wanted these LiFePo4 batteries. When I started looking to upgrade a few years ago these batteries were 2-3 thousand dollars and almost that much for shipping. Now I can afford them and I want to be the first kid on the block to have them.

I think I've heard enough; I'm following your lead. I'm willing to give them a shot at that price. On paper they look good. I may need some assistance to properly configure the BMS.

[WalterM6]

I may need some assistance to properly configure the BMS.

Go the the link below. It has the APP for your Smartphone. It also has a complete wiring diagram along with specs and configuration settings and a helpdesk email in case you have questions.

https://www.lithiumbatterypcb.com/pr...bluetooth-bms/

[davidgolfer]

Originally Posted by WalterM6

Go the the link below. It has the APP for your Smartphone. It also has a complete wiring diagram along with specs and configuration settings and a helpdesk email in case you have questions.

https://www.lithiumbatterypcb.com/pr...bluetooth-bms/

Following along. I'm greedy would like to get two sets and run parallel.