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Small size, High CCA battery


Kiwibirdman

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  • 7 months later...
1 minute ago, RUNAMUCK said:

My charger has the desulphating pulse for lead acid, but also has "gel" and "calcium" modes too.

Thread dredge.

I'm thinking that a lot of my mounting issues will evaporate if I buy a small battery.  2000cc engine. Very few accessories.

Actually I'm telling lies.

Two fuel pumps,

Big electric fan

ECU 

Etc.

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50 minutes ago, RUNAMUCK said:

Actually I'm telling lies.

Two fuel pumps,

Big electric fan

ECU 

Etc.

What car is it for? I run a small Shorai in my racecar and it's never had problems starting the car. My friend was running an aliexpress LiFePo4 in his K24A integra and it also worked well for a few years until the alarm flattened it a couple of times due to parking the car up for more than a month each time (they don't like being run flat). 

 

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8 hours ago, Truenotch said:

What car is it for? I run a small Shorai in my racecar and it's never had problems starting the car. My friend was running an aliexpress LiFePo4 in his K24A integra and it also worked well for a few years until the alarm flattened it a couple of times due to parking the car up for more than a month each time (they don't like being run flat). 

 

Datsun GN620 ute. (Basically like @Sparkle old one)

 

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Here's the new one that Murray just bought for his Integra. This is bigger than his original and has a few extra features: 

Quote
it's got double the capacity of the last one (14ah over 7.5) volt reading on top,  and low voltage cut off at 8v (2v per cell which is their min) so it doesn't kill the battery 

https://www.aliexpress.com/item/33022941096.html?spm=a2g0s.9042311.0.0.a8ef4c4d8WUncV

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On 04/01/2020 at 00:05, Roman said:

Just bumping this thread as have been on the same mission.

Was looking at Shorai but mixed reviews.

Seems some people have run for ages no worries. Other people blowing them up regularly.

Was reccomended EarthX batteries as they have good protection onboard for shorting, low voltage, over charging, cell balancing etc.

Expensive but has a 2 year warranty which put my mind at ease compared to other options which were 6 months or a year. 

https://earthxbatteries.com/our-batteries/lithium-battery-technology

If you have no parasitic load and a car you don't use regularly (like a race car with an isolator) the likes of a shorai are great.. I have one in my honda. Easily 3 months of ignoring the car and it'll fire up.. 

 

For a daily drive with stereo or alarm I would steer clear, due to the risk of bricking an expensive battery with a deep discharge... 

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@ Simpson I have run for the last 5 years and in the new car a Vision Battery, gel type

The first one lasted 2 years including the sitting around in the offseason's, with a mig splatter hole through the top..

They're only about $105 

 

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Aah yes vision, I have a wheelchair spec agm vision battery for my Starlet, it must be 6 or 7 years old and cheap as chips, it performs well.. 

 

I have this one in my mx5, it could be my install or cabling, but it's a little bit weak in my opinion.. 

https://yhipower.co.nz/catalog/vision---hp-102378.htmx?selectedProduct=856

 

 

 

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  • 1 year later...

Rebumping the thread. My old GSXR battery has gone open cct. Unsure if overcharged by by the 2W solar I have, but seems unlikely, the volts looked ok when I semi-regularly checked it. No joy bringing it back by borrowing smart chargers from @RUNAMUCK and @ajg193 

It's motobatt MBTX14AU https://www.tayna.co.uk/motorcycle-batteries/f/suzuki/gsx-r-1100-g-n/ and I was considering something from a local supplier like https://www.mrpositive.co.nz/shorai-lfx14l5-bs12-210cca-high-performance-lithium-battery/ (14Ah, 210CCA $332)

But reading the thread, it's Shorei, as @Roman mentioned had mixed reviews. That earlier ali link now does not deliver to NZ. Racetek is not a good mechanical fit, and $1100 for 10Ah (not 14Ah). 

Am trolling thru Ali Express, and seeing a number of sellers who don't ship, and bad spellerings on batteries and info sheets.

Update: digging into the data sheet here https://shoraipower.com/battery-specifications The Shorei battery 14Ah only accepts a 14A charge. The LiFePo4 cells are lower impedance than the PbSO4, and will probably hoover up current faster. GSXR is 405W alternator, so assuming at 13.8V (worst case?), so maybe 30A+ (with the lights off).  This might explain some failures folks are seeing.

Re-update: This series, with the terrible spelling etc, claims 10C charging (so 100A for a 10Ah battery) https://www.aliexpress.com/item/1005002564457369.html

 

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56 minutes ago, h4nd said:

Rebumping the thread. My old GSXR battery has gone open cct. Unsure if overcharged by by the 2W solar I have, but seems unlikely, the volts looked ok when I semi-regularly checked it. No joy bringing it back by borrowing smart chargers from @RUNAMUCK and @ajg193 

It's motobatt MBTX14AU https://www.tayna.co.uk/motorcycle-batteries/f/suzuki/gsx-r-1100-g-n/ and I was considering something from a local supplier like https://www.mrpositive.co.nz/shorai-lfx14l5-bs12-210cca-high-performance-lithium-battery/ (14Ah, 210CCA $332)

But reading the thread, it's Shorei, as @Roman mentioned had mixed reviews. That earlier ali link now does not deliver to NZ. Racetek is not a good mechanical fit, and $1100 for 10Ah (not 14Ah). 

Am trolling thru Ali Express, and seeing a number of sellers who don't ship, and bad spellerings on batteries and info sheets.

Update: digging into the data sheet here https://shoraipower.com/battery-specifications The Shorei battery 14Ah only accepts a 14A charge. The LiFePo4 cells are lower impedance than the PbSO4, and will probably hoover up current faster. GSXR is 405W alternator, so assuming at 13.8V (worst case?), so maybe 30A+ (with the lights off).  This might explain some failures folks are seeing.

Re-update: This series, with the terrible spelling etc, claims 10C charging (so 100A for a 10Ah battery) https://www.aliexpress.com/item/1005002564457369.html

 

What does this all mean?

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Have had a few motobatt batteries die on me.

have gone back to normal lead acid and no more problems.

bonneville and goldwing ate motobatts.

have a hookup for katana brand battery’s through work. (Century batterys)

han no problems with them.

heard a few bike shops stopped stocking yellow motobatts due to the number of claims.

 

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I may try a LiFePo4 even though it's only 8Ah, it'll crank harder, and if it can't crank long enough I have other uses for it (and should refurb / tune the bike).

Come to think of it, I should carefully check the alternator before I order.

I built an alarm one time for the bike which ran on almost zero standby current. The flashing LED warning LED drained the drained the batt in a couple of days though.

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