View Single Post
  #49   IP: 100.15.153.148
Old 05-09-2022, 01:41 PM
edwardc's Avatar
edwardc edwardc is offline
Afourian MVP
 
Join Date: Aug 2009
Location: Laurel, MD
Posts: 2,509
Thanks: 153
Thanked 595 Times in 388 Posts
Joe,

That's a pretty accurate summary of most of my last year's research. It's why I chose the raw-cells/external-BMS path.

There's one other item for the list that Rod Collins (Mainesail) thought was pretty important. Some (most) BMS's use MosFets for switching, and others drive an external contactor. The MosFets tend to limit the currents to 50-100 amps, and are the weak link due to heating. The contactor versions can easily handle up to 500 A without breaking a sweat.

I selected the REC Active BMS because it tics almost all of these boxes. In addition, it is in a water-resistant housing with a water-resistant single connector. This makes it very simple to swap out with a spare in case of failure. And as a bonus, the manufacturer has been very helpful answering questions, responding within a day in understandable english despite being in Postojna, Slovenia. And the US distributor has a fairly active users forum, and also responds quickly.
__________________
@(^.^)@ Ed
1977 Pearson P-323 "Dolce Vita"
with rebuilt Atomic-4


Last edited by edwardc; 05-09-2022 at 01:46 PM.
Reply With Quote
The Following User Says Thank You to edwardc For This Useful Post:
W2ET (05-13-2022)