MPPT buck converter that isn't optimized for battery recharging?

[fufuValve]

I am looking for something similar myself a MPPT Buck/Boost Charger with variable output for charging Lithium Manganese Oxide (LiMn2O4) That is not tied to specific cell voltage like lead acid or LiFePO4.

I have an unusual setup using Nissan Leaf batteries which are 3.8v nominal per cell

		Per Cell	2 x Cells	3 x Cells	4 x Cells	5 cells	6 cells
Lithium Manganese Oxide (LiMn2O4)
	Ideal Charge Min	4.1	8.2	12.3	16.4	20.5	24.6
	Ideal Charge Max	4.15	8.3	12.45	16.6	20.75	24.9
	Charge Max	4.2	8.4	12.6	16.8	21	25.2
	Nominal	3.8	7.6	11.4	15.2	19	22.8
Lithium Iron Phosphate (LiFePO4)
	Ideal Charge Min	3.5	7	10.5	14	17.5	21
	Ideal Charge Max	3.65	7.3	10.95	14.6	18.25	21.9
	Charge Max	3.65	7.3	10.95	14.6	18.25	21.9
	Nominal	3.2	6.4	9.6	12.8	16	19.2
Lead acid
	Ideal Charge Min	2.3	4.6	6.9	9.2	11.5	13.8
	Ideal Charge Max	2.45	4.9	7.35	9.8	12.25	14.7
	Charge Max	2.45	4.9	7.35	9.8	12.25	14.7
	Nominal	2	4	6	8	10	12

I found this on Ali-express what do you guys think? My Chinglish is average

(YF-BKT80V15A) Non isolated four switch synchronisation buck-boost MPPT https://tinyurl.com/yd6adcmr

[Mike90250]

That's the miracle of Chinglish. It can mean anything ! Try it and see.

I'm not sure I can agree with your statement of
> LiMn2O4 That is not tied to specific cell voltage like lead acid or LiFePO4.
All batteries have a specific cell voltage at full charge. Exceed that, and you get a surprise fire_1f525.png

http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries