looking for a COTS battery power pack with all the trimmings
looking for a COTS battery power pack with all the trimmings
(OP)
Hi there
I'm a mech eng, so this is veering outside my expertise. I'm in the process of designing a portable material handling device for a customer. The device will need to be powered by a large battery (24v, 40a, 10 amp hours). I've done some preliminary research, and it looks like I'll need two sealed lead acid batteries, a low voltage disconnect (LVD), a state-of-charge indicator, fuse, and two chargers (each with their own charge management electronics). Its seems like a ridiculous amount of work to spec and integrate all these components for such a common problem!
I'm thinking someone must retail a "battery management system" for lead acid batteries that handles charging / display / LVD in one nice little box. Kind of like a UPS, but without the inverter. Can someone point me in the right direction?
Thanks in advance
I'm a mech eng, so this is veering outside my expertise. I'm in the process of designing a portable material handling device for a customer. The device will need to be powered by a large battery (24v, 40a, 10 amp hours). I've done some preliminary research, and it looks like I'll need two sealed lead acid batteries, a low voltage disconnect (LVD), a state-of-charge indicator, fuse, and two chargers (each with their own charge management electronics). Its seems like a ridiculous amount of work to spec and integrate all these components for such a common problem!
I'm thinking someone must retail a "battery management system" for lead acid batteries that handles charging / display / LVD in one nice little box. Kind of like a UPS, but without the inverter. Can someone point me in the right direction?
Thanks in advance





RE: looking for a COTS battery power pack with all the trimmings
RE: looking for a COTS battery power pack with all the trimmings
RE: looking for a COTS battery power pack with all the trimmings
RE: looking for a COTS battery power pack with all the trimmings
Without a full set of specs, I'm leery about using power tool batteries or consumer power packs. Neither specify their maximum discharge current, and in the case of power tool batteries the manufacturers won't warrant their use in anything but their own tools.
The marine power pack lead looks promising, but I'm still not finding a match. The best thing I've seen so far are Lithium-ion (or Lithium-polymer) replacements for lead-acid batteries. These are billed as "racing" batteries (since they're lighter) and have all the BMS circuitry on board. I'm currently looking for a reputable supplier.
This seems like such a common problem though. I can't believe no one makes a little electrical box to monitor and protect off-the-shelf lead acid batteries.
RE: looking for a COTS battery power pack with all the trimmings
Keith Cress
kcress - http://www.flaminsystems.com
RE: looking for a COTS battery power pack with all the trimmings
http://www.eltek.com
http://www.alpha.com
http://www.lineagepower.com/?page_id=285
http://www.delta.com.tw/product/ps/tps/tps_main.as...
<tg>
RE: looking for a COTS battery power pack with all the trimmings
LiPOs are rage for RC, but there are some limitations on voltage values and ampacities, which I think would result in something like 4 LiPO batteries. LiPOs also tend to be finicky about how they're charged.
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RE: looking for a COTS battery power pack with all the trimmings
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