chriscappuccio
New Member
- Joined
- Apr 29, 2022
- Messages
- 78
Do you have the total forklift battery with the BMS?
Can someone confirm whether or not NMC's have a thermal runaway issue, or at least more prone to it than LifePo4 and Toshiba's LTO's?So the chemistry is NMC. The battery modules each have a control board that is connected to the Central Control Unit (main BMS) on the top. The CCU powers the module control boards. Without this powered connection, the modules have no BMS functionality at all. As you experienced, simultaneous charging and discharging is blocked as a safety mechanism for the forklift application. I asked if they can provide a CCU image that allows simultaneous charging and discharging, which they haven't replied to yet. Maybe foxBMS / Nuvation Low-Voltage BMS would work here.
NMC chemistry has notably higher self heating property with relation to cell material temperature, as compared to LiFePO4 and LTO chemistry.Can someone confirm whether or not NMC's have a thermal runaway issue, or at least more prone to it than LifePo4 and Toshiba's LTO's?
Lithium LTO battery has a claimed long lifespan, which is hard to certify.I changed plans from using the 32 CATL LIFEP04 cells I bought in the group buy fiasco (now to be used at my house instead). I've been buying a lot of stuff on Ebay and Alieexpress using an app called social good which gives you 50% and 100% back in crypo for shopping through the app on those site. I bought a Voltabox 426AH 48V lithium LTO battery on Ebay for $7000. It was manufactured in late 2019 but never put in service. The seller has more available. Once I redeem the crypto after 60 days (approval time), I consider my net cost to be around $4000.
The battery weighed 1800 pounds as it is a drop in replacement for lead acid and therefore had to have a lot of ballast to match the LA weight. I hauled it home 430 miles from Tempe, AZ to Death Valley and rednecked it it out of the SUV.
I then took it apart in my driveway, pulled all the cells out and the cells only weighed 606 lbs. All the rest was ballast and the heavy duty steel box. The individual modules are 25.2V and 53AH. The quality looks fantastic with all hardware insulated and stout. The included display read 55% charged.View attachment 77152