
This definitely isn't a Battery Tender in terms of build quality. It looks more like an indoor lab instrument than something you'll want to keep in a damp garage. The connectors are definitely not ruggedized, so after you connect the short one to the Shorai battery's special plug, you end up with a very raw-looking electronic connector end hanging out of the bike that you use to connect the opposite end from the charger. It's not like the typical SAE type connector used for a Battery Tender type charger.
So for dual-sport bikes, you'll end up with a connector on the bike that will get wet and muddy really quick. Best figure out somewhere to hide it or a way to wrap it in plastic or something for protection.
Also, the connector that goes to the battery is pretty short and it plugs into the charger. So you can't really set the charger on the floor and connect it to the short connector attached to the battery in the bike. You have to put a chair or box next to the bike to hold the charger.
Bottom line is that Shorai needs to look at the common Battery Tender to get a better idea of how a garage-ruggedized charging system should be built. Not that Battery Tender is the dog's bollocks, just that the Shorai system seems a bit fragile for motorcycles and garage use.
Otherwise, it charges and maintains the Shorai battery ok. It's a bit confusing; when you turn on the charger, you can choose maintenance or charge and you press the buttons but aren't really sure about what's happening.
It's also pretty expensive for what it is and I'm not really sure it's needed because the Li-Fe battery seems to last forever and reads full voltage all the time, no matter how long the bike sits -which is the advantage of buying a Li-Fe battery in the first place. So if your bike's charging system works correctly, you probably will not need a Shorai charger for your Shorai Li-Fe battery -save your money.

I bought this to go with the Shorai battery to discover that a normal tender will do the job... Cables are rerally short meaning the maintener has to hand on the side of the bike... expensive too!
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I already own Li-on/Li-Po chargers for my RC stuff, but I got this because it's plug and play and if you've already invested the over $100 in the Shorai or a similar A123 type battery, you might as well take care of it properly. I live in the Northeast, so it's necessary to keep it topped of for the winter. I have heated gear so I ride when most people don't.
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This is a nice item to have since it balances the charge to each cell, something other smart chargers don't do. Only 2 drawbacks are:
1. Charger plug into battery is a bit flimsy and requires some protection to prevent breakage or bending the contacts.
2. Cable to from battery to the power supply is too WAY short for many applications, such as placing the power supply on your work bench while charging the battery on your bike.
If a cable extension was available, that would solve the problem, but there does not seem to be such an item.
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I was tired of the old lead acid failures. New Li Fe tech, Yeah! Battery Maintenance of the future. I love this new high tech charger / maintainer.
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