AGM lithium hybrid battery for v11

[orangem2]

i have a Motus MST and needed to replace my battery.

One of the riders in the Facebook group recommended the Motobatt hybrid lithium/AGM MHTX20... since the stock one always seemed to labor a bit when started.

The benefit of the lithium CCA but can be charged with any smart battery charger like an AGM... holy crap does it light off the bike fast.

looking into the one that will work in a guzzi V11. Currently using an Odyssey PC545.

Has anyone tried a hybrid like this?

 

[Pressureangle]

Never the hybrid, but my 1100 Sport did like the straight lithium battery.

Motus. I think I've seen you on the Cherohola Parkway during the South'n Spine Raids twice.

[FreyZI]

Also not the hybrid, but a straight Anti-Gravity Re-start lithium battery.  I have them in my R1200R and my F800GS; another in a V11.  There's a disconcerting lack of push on a rather cold morning (never not started up, but you've got to wake up the battery a bit before it really wants to crank) -- not that that'll be a problem for you in Georgia.

[po18guy]

I went with an EarthX LiFePO4 battery, as it is assembled/tested in Colorado, USA and Earth-X has an FAA (aircraft) rating on many of their batteries. 2-year replacement warranty, although life span is expected to be considerably longer.  It is tiny (150mm L x 86mm W x 93mm H) and light (1 Kg) and zero problems spinning the V11 over. It replaces a 5-year old Yuasa AGM. Was 229 USD. 

I have it on a programmable LiFePO4 charger. 

Edited October 17 by po18guy

[orangem2]

1 hour ago, po18guy said:

I went with an EarthX LiFePO4 battery, as it is assembled/tested in Colorado, USA and Earth-X has an FAA (aircraft) rating on many of their batteries.2-year replacement warranty, although life span is expected to be considerably longer.  It is tiny (150mm L x 86mm W x 93mm H) and light (1 Kg) and zero problems spinning the V11 over. It replaces a 5-year old Yuasa AGM. Was 229 USD. 

what model Earth X battery did you get?

 

[po18guy]

10 minutes ago, orangem2 said:

what model Earth X battery did you get?

 

ETX18F. 

[Tomchri]

My 1100 Sport came with a lithium Exide battery, a few hundred grams, but saw red charging light a couple of times, never after installed a AGM battery. Just me, but still don’t thrust lithium.

cheers Tom.

[Gmc28]

On 10/17/2025 at 2:27 PM, po18guy said:

ETX18F. 

I have same.   very happy.

also put one in the 12 duc, then had (the previously reported) relay failure that killed that new, lovely, expensive EarthX battery, draining it down to about 1.5 Volts.  But after I tricked the smart charger into thinking it was ok to charge (do that at your own risk, with proper precautions...), it came back to life, and has been kicking like-new now for another (almost) year. 

[po18guy]

4 hours ago, Gmc28 said:

I have same.   very happy.

also put one in the 12 duc, then had (the previously reported) relay failure that killed that new, lovely, expensive EarthX battery, draining it down to about 1.5 Volts.  But after I tricked the smart charger into thinking it was ok to charge (do that at your own risk, with proper precautions...), it came back to life, and has been kicking like-new now for another (almost) year. 

'Smart' chargers are smart for the battery makers. Once a battery dips below a set voltage, the charger will not charge it - the hint being that you should simply purchase a new battery. I was given two DeWalt 18V batteries which the DeWalt charger claimed were DOA. Oh yeah?  VOM showed that they had about 10V remaining. So, I dug into my pile of chargers and attached a "dumb charger" to both batteries. It brought them up to 16V and then the DeWalt charger topped them off. They have been fine ever since. Japanese cells, which I'm sure makes a difference.  

Edited 20 hours ago by po18guy

[Lucky Phil]

16 minutes ago, po18guy said:

'Smart' chargers are smart for the battery makers. Once a battery dips below a set voltage, the charger will not charge it - the hint being that you should simply purchase a new battery. I was given two DeWalt 18V batteries which the DeWalt charger claimed were DOA. Oh yeah?  VOM showed that they has about 10V remaining. So, I dug into my pile of chargers and attached a "dumb charger" to both batteries. It brought them up to 16V and then the DeWalt charger topped them off. They have been fine ever since. Japanese cells, which I'm sure makes a difference.  

"Smart chargers" and lets call them "basic modern chargers" are different things. Smart chargers have a charging/recovery profile for variuos battery types and "basic modern chargers" don't but have a simple low battery voltage threshold below which they won't charge the battery. Why? Because they don't trust the person connecting the battery to the charger to have the ability to monitor a charger for a battery in a very low state of charge during the recovery period and avoid the possible danger in doing so. So "basic modern chargers" are for late model dumb owners. 

Edited 21 hours ago by Lucky Phil

[po18guy]

Dad gave me the instruction necessary to see through such schemes. A knowledge of broken human nature explains everything aside from natural disasters - and it explains some of them as well. 

[LaGrasta]

I run lithium in nearly all 8 of my bikes. They work great, however, I do ride all of my bikes regularly. That may or may not play a factor.

I will say one thing that has changed with lithium, they all now have a circuit built-in to address overcharging. Thus chargers are not the problem they were prior. I only trickle charge a battery if needed, never high amps.

[Pressureangle]

3 hours ago, LaGrasta said:

I run lithium in nearly all 8 of my bikes. They work great, however, I do ride all of my bikes regularly. That may or may not play a factor.

I will say one thing that has changed with lithium, they all now have a circuit built-in to address overcharging. Thus chargers are not the problem they were prior. I only trickle charge a battery if needed, never high amps.

I have a lithium in my Aermacchi. It was taken from my 1100 Sport as a necessity of the moment; I needed a battery, and when I got it home I stuck it in the empty hole of the 'Sport rather than swapping. The lithium has been sitting there waiting for probably 2 years now, in the 350; it's attached to a Shindengen regulator. I start it maybe every 3-4 months, and it has never failed to crank on the electric starter. FWIW. I have once or twice put the NOCO smart charger on it, but it always showed full charge just about the time I would walk away from it.