What battery does the K100 take?

[IroncladK75]

I need a replacement for my 1985 K100, any recommendations are appreciated. I would prefer one I could buy at batteries plus or somewhere in person.


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[sebas2357]

FWIW, I've had a 2 poor experiences with batteries plus with odyssey pc680s. I know it's the holy grail of K bike batteries, but I had mine go bad twice and BP refused to replace it as they deemed it user error both times.

As they say: Fool me once, shame on you. Fool me twice, shame on me.

Right now, I'm using the Duralast ETX16L. They sell them at autozone. So far so good, I recommend them.

https://www.autozone.com/miscellaneous-non-automotive/power-sport-battery/p/duralast-agm-ready-to-ride-power-sport-battery-etx16l-325-cca/350081_0_0

[IroncladK75]

I will give it a shot, thank you

[rbm]

Here are a list of batteries that should work:

 OEM Battery (Yuasa 53030)
* Cold Cranking Amps (CCA): 325
* 20Hr Nominal Capacity (Ah): 20
* Reserve Capacity Minutes: N/A
* Metric Dimensions L x W x H (mm): 186 x 130 x 171
* Weight (kg): 7.7

Aftermarket Replacements
Deka ETX16L ($119)
* Cold Cranking Amps (CCA): 325
* 20Hr Nominal Capacity (Ah): 19
* Reserve Capacity Minutes: N/A
* Metric Dimensions L x W x H (mm): 175 x 100 x 155
* Weight (kg): 7.7

Yuasa GYZ20HL ($149)
* Cold Cranking Amps (CCA): 320
* 20Hr Nominal Capacity (Ah): 20
* Reserve Capacity Minutes: N/A
* Metric Dimensions L x W x H (mm): 175 x 87 x 155
* Weight (kg): 7

Odyssey PC680-P ($169)
* Cold Cranking Amps (CCA): 170
* 20Hr Nominal Capacity (Ah): 16
* Reserve Capacity Minutes: 24
* Metric Dimensions L x W x H (mm): 181.5 x 76.3 x 167.8
* Weight (kg): 7

Odyssey PC925-L ($230) <== Odyssey recommendation
* Cold Cranking Amps (CCA): 380
* 20Hr Nominal Capacity (Ah): 28
* Reserve Capacity Minutes: 52
* Metric Dimensions L x W x H (mm): 168.6 x 179 x 128
* Weight (kg): 11.8
* Installation requires battery to be placed on its back side to dimensionally fit

Yuasa YTX20HL-BS ($119)
* Cold Cranking Amps (CCA): 310
* 20Hr Nominal Capacity (Ah): 18
* Reserve Capacity Minutes: ??
* Metric Dimensions L x W x H (mm): 175 x 87 x 155
* Weight (kg): 7

Kirkland  207270
Lawn and Garden battery, Fitment code 20, group size U1
* Cold Cranking Amps (CCA): 200
* 20Hr Nominal Capacity (Ah): ??
* Reserve Capacity Minutes: ??
* Metric Dimensions L x W x H (mm): 197 x 130 x 184
* Weight (kg): 8.6

[Chaos]

Yikes, PC680's have gotten pricey since I bought one!  FWIW, they fit my K and Ural and I've had great luck with them, 7-8 years easily.

[Laitch]

I need a replacement for my 1985 K100 . . .

What's happening with that Brick's airbox, ironclad? It's a half-shell! 

[IroncladK75]

It was..... A little disassembled...

Here it is now

[frankenduck]

What I use in my Ks (and my boat)
https://www.amazon.com/gp/product/B074VFKRKL

[Chaos]

+1 on Westco, excellent battery and looks like price hasn't shot up like the Odyssey  https://www.beemerboneyard.com/westco12v20p.html