Where's the battery?

[Deleted member 4366]

Dannelree I suspect he means at 25c the battery rating.
I would like to see the power pack that could put 160 amps into my 36volt pack though (16ah 10c rated)

I have a couple of 24v lithium titanate ebike batteries that you can charge at 1.5kw each (62.5 amps), so that's 3kw charge rate into a 48v pack if you combine the two. They have massive terminals that go straight to the cells for that. I just need to find a suitable charger. Maybe park the bike in a thunder storm and wait for the lightning to strike to get an instant charge up.

 

[anotherkiwi]

According to Hobbyking. Those packs weigh 0.643 kg each, so 4 of them would weigh 2.572 kg, without the harness alarms and monitoring system. The Luna battery is exactly 1.5 kg. That's a significant difference on a light-weight build.

Another consideration is the life-cycle. In theory the Luna battery would last twice as long, which takes away the price difference.

The Samsung 30Q cells can be rapid charged at 4 amps per cell, which is 8 amps for the pack, so you could charge the pack in 45 minutes if you wanted.

That is the shipping weight d8veh and nano-tech like Graphene is rated for 600 charge cycles which based on what I have seen so far with the Graphene packs seems highly probable.

Weight: for me it is off the bike and in my backpack that is important so yes 500 grams is a lot.

Surely by definition a 1C charge will never take less than an hour, unless it's only a partial charge.

My charging strategy is when I get home I charge to storage voltage (if necessary) then top up before leaving home. And my finger slipped (no numeric keypad) I meant to type 2C.

 

[Alan Quay]

Maybe park the bike in a thunder storm and wait for the lightning to strike to get an instant charge up.

1.21 gigawatts.

Sent from my HTC 10 using Tapatalk

 

[motomech]

161 x 98 x 66 mm - 2.1 kg that is 4 x 4 Ah Turnigy 5S nano-tech in a 2P2S configuration

8 Ah at 25C 296 Wh nominative, about 266 real Wh = 35 km or so in my neck of the woods. It will do to the station and back. On flat land it will go forever...

166€ plus the wires and it fits nicely in this:
View attachment 15897
I am going to pull the trigger on this as soon as I stop procrastinating and get a few more web pages built (€€€). I will then have a long range battery and a mucking about every day battery which can also be used together to give about 100 miles or 160 km whichever comes first YMMMV... Now that I have the NCX I think my back and bum can handle distances like that. Where would I want to go that is 80 km from here? Getaria for some anchovies for example!

And <drumroll> the charging time at 1C will be in minutes not hours for the 4 packs on my new charging rig.

I was able to fit 12S/10,400mAh of Multistar Lipo into that exact sm. over-the-frame bag w/ room to spare. The capacity was dictated by the fact the Multistar 4S/5200mAh bricks were on sale for $21US ea. That is a 12S/10,400mAh pack for $138 including the shipping. The clear center pouch is perfect for a mini Volt/Wattmeter.