Hello Guys
Down here in New Zealand we seem to pay more for everthing,and I assure you its not by choice!
The most cost effective packs I can find here are from Luna, and bless them, their packs are about NZ$1140 per kWh. High quality cells are about $13 each.
So I've been on the hunt for some time for a less expensive alternative and an interesting one has just come up.
Hitachi offer a backpack style power pack at 36V and 21 Ah, and from thier literature I believe it uses Samsung INR21700-40T cells, I assume 52 as these cells are 4000 mAh?? Any other thoughts on the number and configuration of the cells? Best of all this pack can be had here for NZ$660, which makes it very modestly priced at NZ$880 per kWh. For ebike use I think I would strip the pack from the back pack and repackage it. Would it be possible to reverse engineer/configure a charger for this pack that would give me recharging options like 80% etc.??
Down here in New Zealand we seem to pay more for everthing,and I assure you its not by choice!
The most cost effective packs I can find here are from Luna, and bless them, their packs are about NZ$1140 per kWh. High quality cells are about $13 each.
So I've been on the hunt for some time for a less expensive alternative and an interesting one has just come up.
Hitachi offer a backpack style power pack at 36V and 21 Ah, and from thier literature I believe it uses Samsung INR21700-40T cells, I assume 52 as these cells are 4000 mAh?? Any other thoughts on the number and configuration of the cells? Best of all this pack can be had here for NZ$660, which makes it very modestly priced at NZ$880 per kWh. For ebike use I think I would strip the pack from the back pack and repackage it. Would it be possible to reverse engineer/configure a charger for this pack that would give me recharging options like 80% etc.??