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May 23rd, 2016, 08:46 AM   #51
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Hi Tourist.

They should work fine if they are A123`s. The price is good!
They can turn the starter a bit slow when they are cold,
but as they warm up during starting they release more amps.
Give the starter short bursts of just a few seconds and rests in between.
I not sure what they will be like in Icelandic conditions.

If the bike is an easy starter you will have no problems.
My 675 has been a bit difficult to start lately (mid carb gasket leak I think)
so I am thinking of having a jumper to give it a bit more when cold. Once
it has been running it is not a problem to restart.

My homemade battery is about 4years old now I think.

Cheers spanner
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May 23rd, 2016, 01:04 PM   #52
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thanks!! -- I do have a 4-cell one on hand and it works fine in the DRZ! wondering if anyone had a comparison
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August 1st, 2016, 11:21 AM   #53
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For the record, a very simple $45 4-cell A123RC.com battery will easily start a cold Husaberg 570

And they're very hard to kill - I have now forgot both of mine in the DRZ until they ran flat. (One time the high parasitic drain, the other time I forgot the headlamp on I just dropped them on a LiFePO4 charger which has a "nudge charge" program as it turns out and now they're both back to 100%.

I've ran that same pack with studs in my DRZ tires commuting in winter in freezing temperatures. No problems. Always easy starting.

Not bad for a 4S1P battery - raised from the dead - on an Andersson 75 connector - to start a large-bore high-compression single-cylinder. Lead acid is DEAD. Thank you, goodbye.
Thanks from spanner and jon andersson
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October 10th, 2016, 07:24 AM   #54
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Hi again! Time to order more packs!

Anyone know about assembled packs with:
- Genuine A123 cells
- Balancing tap
- Andersson 75 connector

Backstory fwiw - So I killed one A123RC.com pack (left the DRZ with the key in and turned on right outside the house! For three days! Forgot to lock it too! I really do not deserve to have this bike still unstolen!!) ... and I lost the other pack I had! As they are so small and convenient!!!

So looking to buy new packs. I'll order from A123RC.com again unless I can find packs that are an improvement for a similar price. Would order EarthX - from my research they're worth it! - but I don't have the money atm

The A123RC packs use fake A123 cells. (Good quality though! A 4s1p battery which will start a large-displacement high-compression single has good quality cells.) And they use Andersson 50 connectors. Andersson connectors are great!, but I read the Andersson 50 datasheet and the maximum pulse current is a little low (50 means they're reated for a constant 50A, pulse is iirc 100A which is lower than I'd like). Andersson 75 connectors would have something like 150A pulse max. And finally, they lack balancing taps.

FWIW I did send A123RC.com an email to check if they did custom-type Andersson connectors and balancing taps. I actually care more about the connectors than the cell type. Got a "failed to send" reply but I've just tried again with a plain-text email. Will post up further info in case it's useful.
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