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BMS Choices
#1
Alright, I think I have seen a bunch of BMS solutions, but nothing as cool as Batrium. I want something as cool, but hopefully not $600. I wonder if anyone knows any of the choices that are available. Is there and in the US so I don't have to wait so long for shipping? Thanks, let me know.

Should I just bite my lip and buy the batrium system? Looking for options is all.
BlueSwordM likes this post
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#2
Batrium shipping is under a week now. And no there isnot many to compete with batrium if you want to be able to expand the system easily bu just adding slaves.

RecBMS and Tiny BMS is 2 other that is rather nice systems but not the same range.
BlueSwordM and shonalex like this post
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#3
There are other options, just not easy plug and play. You can build your own much cheaper, if you know electronics, pcb, and coding. Gotta work for the inexpensive stuff Wink
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#4
Looking for a balance myself too, not willing to spend the $500 for the batrium just yet. Was reading owitte's powerwall and noticed he used this chinese 1s balancer. $20 each so looking at $140 for 7s and $280 for 14s. No monitoring or anything, but if on budget then may be a choice. Once my pack goes up then I'll see how much fuss it is to maintain balance. I may just get one of those cellmons and alarm if they start to deviate
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#5
280 vs 500.... The batrium you get 15x as much functionality. The 1s balancers are not even close to be worth it on a 14s or bigger system. The only thing they do is balance. But do you really know if they do balance? You still need to complement with the most important part and thats is the voltage monitoring and the 1s doesnt have that.

Is it really cheaper then? Smile
Korishan likes this post
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#6
Honestly, the whole setup with 14 longmons and the shunt will be $600. It's just pricey. Yes batrium is the best bang for the buck in the long run. But if there's something that can be had in the under $100 range that just balances out batteries would be ideal. If they could do something like that for the leafmons to allow us to just program them and use them independently to balance out packs (without monitoring) would be really nice. That way once monitoring is needed then that module can be purchased.
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#7
You can run the longmons and only top balance as the chinese versions does but its kind of useless.

Though im presenting a video tomorrow (If youtube plays well) about another cheap ass bms that is ok for those that just dont wanna pay all the bucks for the better ones.
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#8
(10-18-2017, 05:13 PM)Korishan Wrote: There are other options, just not easy plug and play. You can build your own much cheaper, if you know electronics, pcb, and coding. Gotta work for the inexpensive stuff  Wink

Why don't we start a project out of that? I'm sure there are people on this forum willing to work on that...
I offer myself as a volunteer ... my knowledge in electronics are not great but i can help with the software development.
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#9
cmg_george there are plenty of ongoing projects allready. Several on Github as well Smile
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#10
@daromer i was thinking more on the hardware part like designing a pcb. software for the hardware part and so... I look some time ago after a project like that but i was not impressed with what i found... maybe i didn't found the best options (i will look again).
Personally i like the @jesusangel approach (with ESP) http://secondlifestorage.com/t-JAP-Just-...8#pid18188 his idea can be build even cheaper (with an ESP12)
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