Standard Discharge of 500ma = 0.5a - as I was mentioning above will lead to lonest life and low voltage sag.

But don't confuse discharge specs with capacity. A 3000mah cell has 3000mah capacity - regardless of charge/discharge specs. The discharge specs give you a guide as to how fast you can discharge a cell and have less voltage drop and do less damage in terms of long life.

Let's say you have an average of 2600mah/cell and 102cells per pack and 14 in series - that's 14s102p. Each p = 102cells * 2600mah = 265,200mah = 265.2ah. Capacity increases as you increase voltage. So if you have 1s102p, you have nominal 3.7v @ 264.2ah = (3.7v * 264.2v) = 977wh of capacity. If you do 14s that's 48v (nominal) so you have 48v * 264.2ah = 12,681.6wh or 12.7kwh.

Note: Technically that's 12.7kwh at 48v (empty) and 15.5kwh at 58.8v (full charge). Personally, I use 52v for my design calculations on 14s Lithium-ion because it's more representative of the middle of my operating range. 52v * 264.2ah = 13.7kwh

When communicating with with strangers and without context, 48v is a common standard.

Next is depth of discharge. Lithium-ion ranges from 3.0v -> 4.2v / cell. But in practical terms the max is more like 4.15v -> 3.4v (discharge curve knee) or ~90%. So take the 13.7kwh number above and multiply .9 (90%) to get 12.3kwh of useable power out of 14s102p at 2600mah/cell.

Each 1/10 of a volt you go down from full charge

**significantly** increases life span. If you limit max charge to 4.1v or 4.0v or even 3.9v you get increasing lifespan but lower DOD and less useable power. Here's a old but interesting page on this -

https://batteryuniversity.com/article/bu-808-how-to-prolong-lithium-based-batteries that shows possible life space increase by charging to a lower max.

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The point is, you can design your battery for longer life by making it larger than you need and avoiding full charge. For a multi-year, cycle every day powerwall (365 cycles/year) life-span is more important than for an ebike ridden once a week (52 cycles/year).

In your case, a 14s102p at 2600mah/cell would achieve the goal of ~10kwh useable power between 4.0v (max charge) and 3.5v/3.4v (low) and likely give you 1,000(s) of cycles.

FYI - My powerwall design is 14s100p at 260ah/pack. My oldest 14s battery has 1,563 cycles at an average DOD of 36% and no detectable degradation. This subject is near/dear to my heart as I've invested A LOT of effort for low DOD but it will take another 4-5 years before I know what happens at 3,000 cycles and beyond.