[b]German battery dealer for Europe has large catalog.[/b]
For Panasonic 8 cell CGR18650CH LiNmC 2250mah with welded tabs for soldering [url]https://www.akkuteile.de/en/panasonic-cgr-18650-cg-2250mah-3-6v-laeoetfahne-u/a-1006011/[/url]
For Panasonic 4 cell NCR18650B lithium ion 3400mah with welded tabs for soldering [url]https://www.akkuteile.de/en/lithium-ionen-akkus/18650/panasonic/panasonic-ncr18650b-3-6v-3400mah-loetfahne-z/a-1006392/[/url]
Neato will not use more than 3200mah programmed in software. Even less, keeping 30 per cent reserve.
Protection board 2 cell, one each compartment: [url]https://www.akkuteile.de/schutzelektronik/18650/2s-pcb-keeppower-xzd-2004-schutzelektronik-3-5a/a-200503/[/url]
4-cell [url]https://www.akkuteile.de/4s-pcb-keeppower-wyy-ebd02-ab-schutzelektronik-26a/a-200506/[/url]
Catalog does not specify the maximum current allowed by the protection boards. You must ask them.
There are other protection boards on ebay. Different types of wiring shown below.
[attachment=0]

- lithiumpacks.jpg (40.15 Kio) Vu 5309 fois
[/attachment]