I have two Shorai Lithium Ion Motorcycle Batteries now being run though the ringer. Real test will start in a few weeks when i let them sit for 3 months while Im in Afghanistan, then used for two weeks, then sit for another 9 months.
There are much better options, made by American companies (but yes, the cells are made in China, thank the EPA). Also be cautious of batteries that require purchase of their specific charger to balance the cells. There are batteries with the software built in so that the cells are always balanced, for better life and safety.
1: Please share the battery that has built in software to balance the cells.
1: Please share the battery that has built in software to balance the cells.
2: there is no need to balance cells once the batter is properly built.
3: Yes there are US built battery packs.. better still are Us rider built battery packs.
4: As far as Shorai... I stopped using them when i realized I can build better performing battery, that fit perfectly to my applications, have MUCH more AH available, and are Built not only in the US, but in Texas in a garage on my property in the US....
EarthX Batteries
EarthX Batteries
Inside every one of our batteries is a microprocessor Battery Management System (BMS) that monitors the charge level of each cell and balances the charge when needed, protecting the cells from overcharge or over-discharge. What this means for you is more starting power, longer battery life, and the safest lithium motorsport battery on the market. All types of lithium batteries (not just ours) require a “BMS” that monitors and balances the cell charge.
Hmm, thats interesting. As Bronco mentions, I don't see why you'd need software to balance them.
Bronco, did i miss a thread on building batteries?
I seriously looked at replacing my battery a few months ago on the VFR. Turns out I could get a lead-acid battery for less than 1/3 the cost of the Shorai, so I went the old-school route.
It is not lacking in cold weather, just has to be used differently then a lead acid.I have had a Shorai in my BMW for the last year. Matter of fact, I just took it out of the bike this past Tuesday.
The battery is small and light. I mean really light. It holds voltage well and seems to put out a lot of cranking amps when warm. The reason I took it out is because of cold weather.
In my experience this battery really lacks the cranking amps in cold weather. Last year I had several occasions where it would cause a fault in my ABS on the bike. Those that have BMW's with ABS will understand what I am talking about.
I read where you have to turn the ignition on and allow the battery to warm up for two or three minutes, but I found with my bike that did not make any difference.
The problem may be with the two big jugs that it has to turn over to get started when cold. I have a feeling on bikes with smaller pistons it may work well, so I will transfer it to one of my other bikes when they need a battery.
Overall I think it is a good but expensive battery. If weight is an issue, like for the off roads guys, then this may be the battery for you.
The above are my opinions only, based on my experience with the battery.
Fred
It is not lacking in cold weather, just has to be used differently then a lead acid.
Lithium Ion Phosphate battery's have to be "warmed up" before full cranking voltage can be achieved.
I learned this without knowing I learned it....watching Helicopter pilots preflight and start the aircraft (turning on landing lights for a min before start up)
On a smaller bike sized battery just turning on the key, and letting the headlight burn for 1/2 min, then start will normally do the trick unless below freezing temps are at hand.
I did know about having to warm up the battery, so I did turn the ignition on and allowed it to warm up for a couple of minutes. Still had the same results. I am talking about below freezing temperatures (in the twenties).
The bike always started, but there just wasn't enough to set the ABS. When this occasionally happened with a Lead Battery, I could let the bike warm up for about 5 minutes then turn it off and start it back up and the ABS would set. With the Shorai battery this did not happen. I would have to ride a couple of hours before it would reset.
At first I thought it may be my alternator, so I did all the checks and the alternator is fine, so my only conclusion is that it was the battery.
I do a lot of winter riding, so I decided to go back to a lead battery. I am not throwing the battery away, just going to try it in a different bike.