the Rooketh can take a joketh.

and that's why he's my favorite, even if he is a little slow.. yuk yuk

hah slow, I'll show ya slow.

I just pulled my Shorai out of the Ninja which has been sitting for the last two months. Hot weather out in the garage and no charger. I put it on the SHewmacher today and it was right on the green light "charged. Not even an instant on "charging." Just the same as if I ran the bike yesterday. I wasn't able to start the bike but by the looks of it, she would have fired right up.

* Last updated by: Rook on 9/1/2011 @ 9:13 PM *

Boys, Shocker for me. Shorai left me stranded today...... Not Happy. I got less than one season out of it. Gave it a slow trickle charge for 3 hours. Bike started. Went for 35 minute rip up the highway and it was dying again. Pushed it 400 feet home and up the driveway. YUK.

It is now on slow charge for the night if happens again it's dumpster time,, Again UGH. I'm going to start waving the stock flag with Hub if this keeps up.

^^^^I would talk to Shorai about this, Rom. Maybe you need to "balance" the cells with a Shorai charger. Sheeze I sure hope that is all. If these things don't last a year, nobody is going to buy them. I'd be willing to replace about once a year but that would be the limit.

* Last updated by: Rook on 9/11/2011 @ 8:37 PM *

Formula and math, forget it. But how about ohm's law? Like I said... I'm lost in formula as to who goes where? Say, if you look at formula my way. Say you look at the bike's balance this way:

The bike calls for a 14ah battery. This one shows 5ah installed in the 14. I'm going to go through some crazy formula, you tell me if this pans out. If I know by the battery formula with all those decimal points moving right or left is the confusion for me. Therefore, I'm going to make the bike look like a battery charger all balanced with the right decimal point. You have to vision the concept to see if it is doing it as per formula of the balance of the charging system of the bike and to charge a 14ah battery in a balance of how you work electricity [push].

If to charge a 14ah battery per formula = Take 14, move decimal point to the left one time.
If to charge a 14ah battery per formula = Take 1.4ah, set that much amp to the battery to recharge it.
If to charge the bike battery per formula = Take a look at your volt display. When you ride, are you not charging that battery back to a constant 1.42v? Give or take it may say 14.2v or 14.4v. Is it still charging at a rate as per charging formula 1.4ah we ride for an hour? It may read 14 point wattever, that is that point in concept. Yes or no?
Segway to this puppy...

... If we read the battery "AH" on the battery, does that not say:

If to charge a 5ah battery per formula = Take 5, move decimal point to the left one number over.
If to charge a 5ah battery per formula = Take your calc'd .5ah, set the battery charger to .5ah to charge a 5ah battery.
If to charge a 5ah battery with a charge rate set at 14.2v give or take a 10th, are we not overcharging the 5ah battery while riding?
Are there charging complaints about this battery being installed, not lasting long? Does the formula say you are overcharging the battery 2.8 times the rate of charge? Is that boiling inside? Separation of plates? Years of service shortened?

I don't know. Does it sound like it made sense, you apply that 5ah battery to the bike's charging system? And another thing; Would not that starter current draw down the battery having such a low capacity but still can light the bike up. I'm more seeing how that would cook @ 1.4, not .5v going back in. That is .2 of 3 times the charge rate my conversation [w/Yuasa] said not to go there. In other words, yes, throw a 10ah charger on the battery, but not for 14 hours [@ 1.4] you don't. Nor, do you charge a hot rate 10ah @ 4 hours or she's buckle just as quick, but the recommended balance to hot the battery up fast? That is that balance of charge rate with proper charging and the balance of bike designed for 14ah.

So, if you are touring with that 5ah battery, would that be 3 times the rate for a few hours in the saddle? I'm sure I'm not connecting the dots. I must be missing some formula that makes that battery survive? How long have you had it, Romes? Giving you trouble yet?

Romes, Yeah, I didn't get to this page to see your last post. When I saw the amp hour... Got me thinking. So yeah, you answered it. Does the battery look bowed out? Was it flat when you first installed it? It may be subtle the photo may not pick it up or who knows without cutting it open to see if it did separated a plate inside. Just takes one @ 2v [X's 6].

Romans, right side top flap of the Shorai battery box says:

Standard Lead-Acid chargers may be used. However, lead-acid chargers with a "desulfation mode", "maintenance chargers, or "trickle" chargers may NOT be used under any circumstances.

* Last updated by: Steven14 on 9/11/2011 @ 11:18 PM *

Cool battery. Guess watt?

Read it and weep/seep out. Read the very bottom, Romes. A tender is not high enough for plus 12.8v. That is 20% down. Look at 100% is that $80 charger that goes with the shorai. Special plug in the center of the battery post leads.

We are talking deep cycle batteries, right? That 14.340v plus-size is that electric boat motor spending the day not even getting close to the 12.866v. Look at that reserve from 14 to 12v. That battery has to be plugged in every-f*inn day and night = Battery will last forever with that special charger monitoring that balance inside.

Standard Lead-Acid chargers may be used. However, lead-acid chargers with a "desulfation mode", "maintenance chargers, or "trickle" chargers may NOT be used under any circumstances.

I guess I'm screwed then because I left mine on the Schewmacher for the last 10 days. No desulfation mode but it is a battery maintainer.

I guess if I need a new battery I'll get another Shorai. ....as long as they are finally manufacturing the charger for it.

(this is starting to feel like that ant farm I bought for the kids...ant farm $18....ants $42.)

* Last updated by: Rook on 9/12/2011 @ 12:05 AM *

......now just hold on, I'm sure Steven is correct about what the box says but I'm also pretty sure I would not have bought a battery in the dead of winter with no means of charging it for god only knows how long. THere was no Shorai charger in production when I bought my battery and there was no disclosed date that it was going to be available.

I don't want to start misinformation but I think the key situation is desulfation mode. That will wreck the Shorai for sure because they do not sulfate. The cells need to be balanced and that is what the SHORAI battery does that other chargers don't.

I will email Shorai and ask about battery maintainers. Hope it's not toast.

Kruz may know from conversations with the Shorai rep he was talking to.

Dudes., you get me all shook up over sh!t!!!!!

This is from the Shorai site:

Q. Can I use Lead-Acid battery chargers or charger/tenders?
A.Yes. HOWEVER, you may NOT use a charger/tender if it has an automatic "desulfation mode", which cannot be turned off. We have confirmed with Deltran, makers of the "Battery Tender" brand, that their products do NOT have a desulfation mode, and are therefore OK for use with Shorai LFX, for example. But the best possible charger/tender for Shorai LFX is the SHO-BMS01, which will be released on about March 15th 2011, we expect. It uses the 5-pin BMS port in the LFX batteries, in order to monitor, diagnose, and balance the individual cells during charge. And it also has an optimized storage mode that will give the longest possible service life to your LFX.

If you are storing your vehicle and want to check the remaining capacity, or you're a racer with a constant-loss system, you'll want to know how resting voltage (i.e. with no load or load under 200mA) maps to remaining capacity. LFX batteries should be maintained such that 20% capacity remains at minimum, as best practice. Use a good-quality voltmeter to check remaining capacity, and consider recharge whenever the battery capacity falls to about 50% remaining. Of course, if you get the Shorai dedicated BMS01 charger, you can just hit the "Store Mode" button and leave it to do the work for you.

.........i'm plugging my Schewmacher back in.

* Last updated by: Rook on 9/12/2011 @ 1:02 AM *

I'd get out the big 10a and cook it. Wipe the bike down, sip a bev, with lunch. Okay, times up. Watt do the volts read? 14.3v? Throw the tender on, you'll shut down the high rate. Now it cooks at 13.1v = High enough to cook all year(s) without causing sulfation, [but not high enough for a deepC], still, as if your engine was running at this voltage [on acid plates, remember]... So says a tender, right?

Rook, if your battery is a deep cycle?; 14.3v is the static sit on the shelf new battery sold. If you put the tender on, it knows 14 but brings down that deep down to 13.1v; look at the deep cycle chart. Right? I think that is what they mean by not using the tender.

SulfationHere: I wanna tool up to the deep6.
DeepCycleHere: That will be cha-ching!

SulfationHere: Hold on. Watt is the buildate?
DeepCycleHere: Why it'saysitter 6 months old, why?

SulfationHere: Are you making any today?
DeepCycleHere: Why yes we are.

SulfationHere: Good. Put my name on one it's my birthday and don't forget the charger.
DeepCycleHere: I'm sorry, but we rotate stock anshit.

SulfationHere: 6 months and did anyone charge them?
DeepCycleHere: Why, we shut down the plant for 30 days, it's kind of slow.

SulfationHere: Oh, you mean they didn't park their battery tenders on them suckers yet.
DeepCycleHere: Stop reading out website and figuring out shit, tender lips.

SulfationHere: Say, just send me a fresh one if you want to make the sale. Not my problem they sat. I just printed this money anyway.
DeepCycleHere: Oh, in that case, your sulfation is shovel ready is to deep6 that other battery you now have, right? Watt are the 3 numbers on the back of your card and I'll have batthe charge out on your charge card... Says here your fundsore low. Sore-wee.

* Last updated by: Hub on 9/12/2011 @ 1:45 AM *

Just checked it. No Good News, It's NFG, 12.4 volts on my meter, hit starter drops to 9 Volts. Can't keep the Dash lit. Toast. Man I hate this shit. I rode the bike for 300 kilo early that day then it goes out,,,,,, Just like a light bulb. No Warning.

I believe I'm the grandaddy of Shorai users as I took the plunge first, last December.... and mine is working fine. Romes, calm down, cooler heads will prevail. Are you sure it's not your charging system on the bike acting up? I just had a rectifer/regulator take a nosedive on my VTX 1300C, bought a new battery and it died also....arggh. Basic troubleshooting 101 and found no alternator output, replaced the R/R and all is well again.

If the battery is dead, all is not lost, you have a a warranty and Shorai will give you a new battery. I know it's a pain in the butt but I've had lead acids die on me in a little over a year.... stuff happens. Maybe we all need to get that special Shorai charger and do a periodic recharge/rebalancing of the cells.

I have a Schumacher lead/acid charger and will not use it on the Shorai since it does have a desulfate mode.... which is a surefire Shorai wrecker.

Romes, a lot of us have invested in these batteries and we need you to settle down and find out what the root cause of the problem is. If it's a one off failure and Shorai warranties it and you move on..great. If there is a need to rebalance the cells periodically to prevent failure, we need to know this also. If improper charger was used, we need to know that as well.

Keep us posted big guy, we're all counting on you. I'd get ahold of David Radford at Shorai first thing!!

Romes, calm down, cooler heads will prevail. Are you sure it's not your charging system on the bike acting up? I just had a rectifer/regulator take a

Guys you know I try to say the most with the least amount of words. (mostly because I can't type lol)

All I know for sure is, Batt will not take a charge. My charger set at 2 amps puts out almost 11v and when switched to 10 amp 13.48v. Depending how dead batt is. They will vary a little.

It would not take 13.48 last night so last try was 11 volt. No change this morning. It's Toast.

Is bike charging system ok ? Don't know 100% Yet, but is New, hope that is not the prob.

I remember how the Turn Tech behaved when it was about to give up the ghost and this smells like Same shit. I will test 4 sure. But remember it died in the bike and now won't take a charge. Both point to Batt is NFG. Did the Bikes charging system kill it,,,,,,, well Can't rule it out just yet but can't see it. Must test to be sure.

If the battery is dead, all is not lost, you have a a warranty and Shorai will give you a new battery. I know it's a pain in the butt but I've had lead acids die on me in a little over a year.... stuff happens.

I hope I can find Bill of sale ? Pain ? whats's pain is that f.cking UPS truck will nail me again. Brutal.

* Last updated by: Romans on 9/12/2011 @ 11:26 AM *

Bummer Romans... Guess you get to be the first to test Shorai's warranty.

Hope this doesn't start a trend... I have 3 Shorais now.

I have 3 Shorais now

Dog will do all to get to the bottom this. I hope this is a one off situ. If not, I hope your in good shape, pushing with Helmet on sucks BIG TIME. My neighbors loved watching me go sweating by.

I have a Schumacher lead/acid charger and will not use it on the Shorai since it does have a desulfate mode.... which is a surefire Shorai wrecker.

pushing with Helmet on sucks BIG TIME. My neighbors loved watching me go sweating by.

Yes it does... but better to push one up the street than outta the woods, no?

Just FYI for the guys... I killed my 18ah Shorai when I was "building" my bike... charged it with a Battery Tender w/o any issue... Still going strong.

Romes, you know that conversation I had with Yuasa tech? I was trying to work out that forensics where I buy a new old stock sitter. Get this. That dumbass eyesore bike I bought?; I had this funny acid tingle working all over that battery bay area, knowing that burning feeling; working with old batteries; wetting/charging new ones to install.

I didn't think my charging of the sulfur based battery was buckling plates with such low (2) amp charger, pushing 4 amps at it on the fastrack charge as per reading the Yuasa guidelines. Then tech said I had zip of a problem even using a full 10 amps at it for a short time.

The get this part pans out like I'm thinking, this bike has the seat button directly down on the battery. That means, for all those years, I had people plop their wrinkleye dive down on that seat pad. Press that button cushion on a seal and popped it open. I could ramp that battery up to 13 plus, even to 14.1v was the max I would top it out at. It would just keep dropping from there in 10ths.

Next day I go to it, 12.3v. I now take it for a ride, literally turn the key off, turn the key back on, hit the batt display = 12.1v after a good run. I let the 14 sit with 3 years now on it? Its been sitting for days = 12.5v. Big difference I see a good charge rate @ 14.4v riding, key off, key on, I gotta see 12.8v minimum or it's junk [new batt]. I charge a new battery and now that 12.8v should sit there for awhile, meaning, it has a threshold like the deep cycle. Not a lot but do you see the [2 charge rate] numbers we are after? Me needing min of 12.8v, you needing a min of 14.1v we walk out in a few days, key on?

For that long term balance = A wall socket in the garage is a pluggit'inn'plug it in [before] you enter the house.

Oh, and with me gathering all this evidence to present, someone pointed a finger at me will you is point it right back at you if I think I have a point about battery integrity and my charging up two 14 batteries without a problem. I showed your ass, dealer, I'm on your side, not blaming you, Yuasa, but here we are with some eyetailyawn design is stick to red sauces, nothe building of bikes.

Tech sent off a battery to me saying it's not worth, who is, did what, forget it, here you go... Good Will.

* Last updated by: Hub on 9/12/2011 @ 12:39 PM *

Yuasa, but here we are with some eyetailyawn design is stick to red sauces, nothe building of bikes.

Yuasa going back in tonight. Been on the shelf no charge for a couple of years. Bet it starts lol I hope ? froom 2007.