u/000011111111

Problem statement; whenever we turn on the hot water particularly when we use the sprayer in the sink or run the dishwasher or run the washing machine it sounds like something's hammering inside the hot water heater and I don't know what it is. I have a video with a sound sample above.

I'm trying to find a seller for this webbing type seen in this photograph.

I'm just curious is it possible to reserve these from a private landowner or recreation.gov or another website?

Saw these two tents up just below the bridge today while I was picking up trash at this scenic viewpoint.

Two modules: 48v 64a
Cells: 18650 total count 312
Bike build year 2019
Make: PEBL Go from better bike
Miles: unknown

Module A Pack has BMS and 144 cells
Module B Pack has 168 cells

Each pack had groups with the following cell voltages:
Module A: Current voltage 15.96v

1. 3.3v
2. 3.25v
3. 2.29v
4. 3.35v
5. 3.21v
6. 3.23v

Module B: 
Current voltage 25.4v
9 Packs of 24 cells

0.30v

4.118v

4.16v

4.15v

4.19v

4.20v

7.25v

4.15v

4.22v

Diagnostic work:

1. BMS seems to be working to spec. Cell voltage is out of spec with two packs within the modules having lower voltage, such as 2.29V and 0.30V from two of the packs within the module

Goals:
Rebuild the batteries in hopes of achieving the longest possible lifespan. 

Other info:

The seller said he damaged the batteries from leaving the solar charger plugged in while not riding the bike for a long time, and therefore overcharging the batteries. 
Solar charger controller has the following specs:

1. 54.6v lithium / 8a
2. Max PV voltage range 5-60V max input short current 8A
3. Max Battery charge voltage is 54.6V up to 9a

Plan:

Buy 3120 new cells from the 18650 battery store. That gives me 8 extra.

Model: EVE 26V 18650 2550mAh 7.5A Battery

Spot-weld new packs with a cheap spot welder from AMZ. Item name  

9000W Battery Spot Welder, Rotary Knob Operation 100 Gears Adjustable Foot Pedal Operated, 0.1-0.3mm Spot Welder with Dual Pulse Output, Portable Spot Welder for Making DIY Battery Packs (UK1)

Questions for folks who have done this before;

1. Do you see any big problems with this plan? 
2. Am I buying the right batteries? I found the seller on this sub

Questions for folks who want to weigh in on the cause of the initial failure:

1. Why would the MPPT solar charge controller cause the failure? Is it designed to stop charging the batteries when they are full?

Also, the BMS shouldn't stop accepting power from a charger when the batteries are full? 

Two modules: 48v 64a
Cells: 18650 total count 312
Bike build year 2019
Make: Pebble Go from better bike
Miles: unknown

Module A Pack has BMS and 144 cells
Module B Pack has 168 cells

Each pack had groups with the following cell voltages:
Module A: Current voltage 15.96v

1. 3.3v
2. 3.25v
3. 2.29v
4. 3.35v
5. 3.21v
6. 3.23v

Module B: 
Current voltage 25.4v
9 Packs of 24 cells

1. 0.30v

2. 4.118v

3. 4.16v

4. 4.15v

5. 4.19v

6. 4.20v

7. 7.25v

8. 4.15v

9. 4.22v Diagnostic work:

10. BMS seems to be working to spec. Cell voltage is out of spec with two packs within the modules having lower voltage, such as 2.29V and 0.30V from two of the packs within the module

Goals:
Rebuild the batteries with the hope of having the longest life possible. 

Other info: The seller said he damaged the by batteries from leaving the solar charger plugged in while not riding the bike for a long time and therefore overcharging the batteries. 
Solar charger controller has the following specs:

1. 54.6v lithium / 8a
2. Max PV voltage range 5-60V max input short current 8a
3. Max Battery charge voltage is 54.6v up to 9a

Plan:

1. Buy 3120 new cells from the 18650 battery store. That gives me 8 extra. Model: EVE 26V 18650 2550mAh 7.5A Battery
2. Spot-weld new packs with a cheap spot welder from AMZ. Item name

  

9000W Battery Spot Welder, Rotary Knob Operation 100 Gears Adjustable Foot Pedal Operated, 0.1-0.3mm Spot Welder with Dual Pulse Output, Portable Spot Welder for Making DIY Battery Packs (UK1)

Questions for folks who have done this before;

1. Do you see any big problems with this plan? 
2. Am I buying the right replacement batteries? I found the seller on this sub

Questions for folks who want to weigh in on the cause of the initial failure:

1. Why would the MPPT solar charge controller cause the failure? Is it designed to stop charging the batteries when they are full
2. Also, the BMS shouldn't stop accepting power from a charger when the batteries are full?

Empty park today