Dforster67
New Member
- Joined
- Feb 2, 2021
- Messages
- 60
I have a bank of 100ah ready to go, other than the BMS. have just a few questions. Not much experience using these batteries so I'm asking here first.
I got my bank from a local guy. He resells from his Chinese supplier. Tests and balances them before sending me the complete pack ready to use (minus bms)
1. is it safe to use without a bms until i get one? someone told me it was ok with lifepo4 with the skybox, but I kind of have some doubts. They won't get heavy use, mainly just in case backup is needed until I get my BMS installed. Then I may use to offset evening grid use.
2. what specific settings do I use on the skybox? it is not straight forward to me yet.. I guess I know I will choose "custom lithium" since they only have a few commercial versions in the menu.. I've pasted some of the other settings below in case anybody has experience with these.
3. is it ok to have a bank of 100ah and add another bank of 280's later on? If I parallel the two 48v banks will skybox just need to know it is a 380ah single bank?
4. I'm planning to use 2awg cables about 5' long or less. I think this is ok for either the 100ah or 280ah pack.
5. i plan to order an 80 amp and a 200 amp bms for the 100ah and 280ah. are these about right? (assuming I can mix the banks)
Charge Efficiency Factor Default: 98 %
Battery Installation Cost Default: 0
Absorb end amps per string Default: 10 A
Charge amps per string Default: 30 A
Discharge amps per string Default: 30 A
Number of strings Default: 1
Minimum SOC Default: 20 %
Maximum SOC Default: 100 %
Absorb Charge Default: Timed
Absorb Voltage Default: 55 V
Rebulk Voltage Default: 48 V
Max Absorb Time Default: 00:30 HRS:MIN
Low Battery Cut-Out Voltage LBCO Default: 50 V
High Battery Cut-Out Voltage HBCO Default: 58 V
LBCO Time Delay Default: 00:10 MIN:SEC
HBCO Time Delay Default: 00:10 MIN:SEC
Low Battery Restart Default: 51 V
High Battery Restart Default: 56 V
I got my bank from a local guy. He resells from his Chinese supplier. Tests and balances them before sending me the complete pack ready to use (minus bms)
1. is it safe to use without a bms until i get one? someone told me it was ok with lifepo4 with the skybox, but I kind of have some doubts. They won't get heavy use, mainly just in case backup is needed until I get my BMS installed. Then I may use to offset evening grid use.
2. what specific settings do I use on the skybox? it is not straight forward to me yet.. I guess I know I will choose "custom lithium" since they only have a few commercial versions in the menu.. I've pasted some of the other settings below in case anybody has experience with these.
3. is it ok to have a bank of 100ah and add another bank of 280's later on? If I parallel the two 48v banks will skybox just need to know it is a 380ah single bank?
4. I'm planning to use 2awg cables about 5' long or less. I think this is ok for either the 100ah or 280ah pack.
5. i plan to order an 80 amp and a 200 amp bms for the 100ah and 280ah. are these about right? (assuming I can mix the banks)
Charge Efficiency Factor Default: 98 %
Battery Installation Cost Default: 0
Absorb end amps per string Default: 10 A
Charge amps per string Default: 30 A
Discharge amps per string Default: 30 A
Number of strings Default: 1
Minimum SOC Default: 20 %
Maximum SOC Default: 100 %
Absorb Charge Default: Timed
Absorb Voltage Default: 55 V
Rebulk Voltage Default: 48 V
Max Absorb Time Default: 00:30 HRS:MIN
Low Battery Cut-Out Voltage LBCO Default: 50 V
High Battery Cut-Out Voltage HBCO Default: 58 V
LBCO Time Delay Default: 00:10 MIN:SEC
HBCO Time Delay Default: 00:10 MIN:SEC
Low Battery Restart Default: 51 V
High Battery Restart Default: 56 V
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