Great conversation thread....
I started questioning my setup this morning after a long fight with a support tech from a test charger I was using in place of my BougeRV 40A. They insisted on my using their settings for Lithium batteries. (Bulk Charge: 13.6V /Absorption Charge: 14.4V / Float...
Thos, as you see in the photo above im not grounding to the body of my camper not that you cant, you can and it is a good thing by just running a wire to the frame drill a hole and bolting/Self tap it on 10-12Ga should be fine.(just like the trailer wire is done), in my case all the ground wires...
Just John,
Thank you I will post back here once I get the cells health outcome or I make a trip to china!!! OMG im shaking my head and praying now that I paid for 16 cells and told him if they all are good I would order a much larger batch for my shop so hopefully that will make them hand pick...
MisterSandals, (3S 12V Li-ion Battery ) OOPS My bad Typo
Ok because of the configuration im running here now I got it.. man I'm slow them 8 batterers set up in pairs of 2 are working as 4S then connected in a series setup only require a 4S BMS.
I didnt stump you all did I?
OK It looks to me now what is needed for that Battery Configuration is a 8S 200A 12V BMS can anyone confirm this? if so where would I find one OMG. Just thought about this then I could run 2-80 lifepo4 chargers for 160A of charging? Hummm My wife not going to like...
Zil, most RV charger/inverters are junk they kill batteries. yes you can run that 2000 watt inverter with them batteries. I would suggest not tying the inverter into the main breaker box with out a transfer switch or do as I did and ran 4 new outlets that connect to the inverter on a switch...
GOOD POINT HRTKD, I have discounted my factory one and I would suggest the same. This way no one flips it by accident. If down the road you get a onboard charger for them batteries then run 12/3 from the breaker to the battery compartment if possible on a dedicated 20amp breaker.
This will get you in the correct direction, it is very important to get your fuses amd shut off switches in place look at my 5th wheel photo... I will be adding solar later this yr... You will need a discount switch for that as well as one from the batteries as you see in my photo.
connecting...
joanna_lannie, Thank you!!!
Ok batteries are ordered and 16 cells now im going to make 2 12V 560ah batteries like this attached image, the question now would I be able to use JBD 4S 150A BMS Lifepo4 Battery 3S 12V Li-ion Battery Smart Balance Protection or if not then what would the correct...
Bud, im replacing my gulf cart batteries in my RV 8-6V lead acid with the 12 cells making 3-12V(280ah) sets for now. Will make it 24V at a later date once I go solar. 3.2X4 cells=12.8
This will get me about 750ah total or 3-4 days with out charging when off grid.. I have a 80amp Progressive...
Im ordering 12-280ah cells from: Shenzhen Qishou Technology Co., Ltd. in China I want to make sure I'm protected and being many of you folks have seen there contracts you will no more then me at what to look for.
I think they offered me a good price for what they claim to be grad A cells 12 for...