Scepterr
Member
- Joined
- Feb 19, 2017
- Messages
- 226
CyberWall DC
7S80P +1 swap2300mah avg cell
3 packs Panasonic, 1 pack Moli,1 pack Sony, 2 packs mixed
This bank will be used to power all my shop DC appliances, 300 watts of LED lighting, 1200 watts of LED signage. Not sure yet exactly what I'll use for DC to DC output.
Pack Specs;
Pack to pack connection via XT90(2*10AWG each side)
Positive Side: 4AWG Bus, .2mmx8mm nickel spot welded pairs, pairs fused to bus,24AWG Tinned Copper Fuse Wire
Negative Side: 4AWG Bus, .2mmx8mm nickel spot welded, all cells to bus
CyberWall AC
7S80P LGMF12100-2200mah avg cell
This bank will be hooked up to a 3000watt inverter and usedto power all my shop tools, soldering/hot air stations, hot plates, vacuum chambers, clean air stations
Testing Process;
All cells that pass physical inspection (no rust,leakage,large dents) and register a voltage get charged.
Cells below 2v get 100mA charge to 3V then 500mA till full and monitored for excessive heat.
Cells above 2V get charged at 1A to full.
Cells that are above 3V out of the pack and are in pairs or triplets I charge without disassembly.
After initial charge cells rest for 3-5 days, all cells above 4.1 get capacity tested at 1A and resistance checked. Pairs and triplets get split for capacity test. Cells that show any significant heat during initial charge get put through an additionaldischarge/charge cycle before capacity check, if they show less heat they move onto capacity check.
Besides the actual capacity one thing I check for is tested capacity vs original spec capacity if it's less than 70% and the cell resistance is relatively low I attribute that to cycle life degradation and I dont put those cells in an active pack. All those cells that are over 2000mAh go into my spare swap pack, in my view they are perfect for that purpose since they'll have limited use if any while a pack is being repaired and it'll have equivalent capacity to the rest.
I use the 4S for capacity testing, personally I would advise against the Opus. After 3 days of discharging and charging with it, I'm not a fan of how it performs, check my posts in thisthread.
7S80P +1 swap2300mah avg cell
3 packs Panasonic, 1 pack Moli,1 pack Sony, 2 packs mixed
This bank will be used to power all my shop DC appliances, 300 watts of LED lighting, 1200 watts of LED signage. Not sure yet exactly what I'll use for DC to DC output.
Pack Specs;
Pack to pack connection via XT90(2*10AWG each side)
Positive Side: 4AWG Bus, .2mmx8mm nickel spot welded pairs, pairs fused to bus,24AWG Tinned Copper Fuse Wire
Negative Side: 4AWG Bus, .2mmx8mm nickel spot welded, all cells to bus
CyberWall AC
7S80P LGMF12100-2200mah avg cell
This bank will be hooked up to a 3000watt inverter and usedto power all my shop tools, soldering/hot air stations, hot plates, vacuum chambers, clean air stations
Testing Process;
All cells that pass physical inspection (no rust,leakage,large dents) and register a voltage get charged.
Cells below 2v get 100mA charge to 3V then 500mA till full and monitored for excessive heat.
Cells above 2V get charged at 1A to full.
Cells that are above 3V out of the pack and are in pairs or triplets I charge without disassembly.
After initial charge cells rest for 3-5 days, all cells above 4.1 get capacity tested at 1A and resistance checked. Pairs and triplets get split for capacity test. Cells that show any significant heat during initial charge get put through an additionaldischarge/charge cycle before capacity check, if they show less heat they move onto capacity check.
Besides the actual capacity one thing I check for is tested capacity vs original spec capacity if it's less than 70% and the cell resistance is relatively low I attribute that to cycle life degradation and I dont put those cells in an active pack. All those cells that are over 2000mAh go into my spare swap pack, in my view they are perfect for that purpose since they'll have limited use if any while a pack is being repaired and it'll have equivalent capacity to the rest.
I use the 4S for capacity testing, personally I would advise against the Opus. After 3 days of discharging and charging with it, I'm not a fan of how it performs, check my posts in thisthread.