Zongshen RX3: Replacement Batteries

[fjmartin]

This is great Spud. I had done some research of batteries for the RX3 when the times comes. Here is what I found:

Yuasa YTZ12S-DS Battery
Positive on the Left, Negative on the Right
6.00 x 3.44 x 4.38
11Ah
210CCA
8.1 pounds

Shorai LFX14A1-BS12 Battery
High end replacement. Requires their battery charger
5.83 x 2.63 x 4.13
14Ah
210 CCA
1.83 pounds

Bikemaster DLFP-14ZS
Polarity is correct. Need lithium trickle charger
5.82 x 3.43 x 3.7
5Ah
CCA 250
2.4 pounds

Battery Tender BTL14A240C Lithium Iron Phosphate Battery
Polarity is correct. Need lithium trickle charger
5.27 x 2.55 x 3.62
14Ah
CCA 240
1.76 pounds


Battery Tender 022-0198LI Lithium Junior Charger for Lithium Iron Phosphate Batteries Green

Do you believe that the 14Ah Lithium batteries would NOT be able to keep up with a heavily farkled RX3 like mine which has the following:

300 watt stator

160 watts used for normal operation

140 watts available
Standard headlight is 35W. Genssi uses 76W = 36W difference
Volt/temp gauge = 5W as a guess
2 x 2.1A @ 5V USB chargers = 10.5W each = 21W
Hyperlites = 3W
2 x Offroad spot lights = 10W each = 20W
SpeedoDRD = 5W as a guess
Glove liners = 15.6W on high
Jacket liner = 84W on high

36+5+21+3+20+5+15.6+84=189.6W used for accessories

160+189.6=349.6W


According to this my stator and battery which are stock should not be keeping up but they do. I've never had it run the battery down even on LONG riding days of 10+ hours and then repeating that the next and next days with out a trickle charger to top off.


Take care!
Joe

[BlackBike]

Whoa...good thing they are packing 300wats for modern day gadget riders.

I just was reading this last night. Seems you have done similar research

http://www.advpulse.com/adv-prepping...ll-dual-sport/

[SpudRider]

Originally Posted by fjmartin

This is great Spud. I had done some research of batteries for the RX3 when the times comes. Here is what I found:

Yuasa YTZ12S-DS Battery
Positive on the Left, Negative on the Right
6.00 x 3.44 x 4.38
11Ah
210CCA
8.1 pounds...

...Do you believe that the 14Ah Lithium batteries would NOT be able to keep up with a heavily farkled RX3 like mine which has the following:

300 watt stator

160 watts used for normal operation

140 watts available
Standard headlight is 35W. Genssi uses 76W = 36W difference
Volt/temp gauge = 5W as a guess
2 x 2.1A @ 5V USB chargers = 10.5W each = 21W
Hyperlites = 3W
2 x Offroad spot lights = 10W each = 20W
SpeedoDRD = 5W as a guess
Glove liners = 15.6W on high
Jacket liner = 84W on high

36+5+21+3+20+5+15.6+84=189.6W used for accessories

160+189.6=349.6W


According to this my stator and battery which are stock should not be keeping up but they do. I've never had it run the battery down even on LONG riding days of 10+ hours and then repeating that the next and next days with out a trickle charger to top off.


Take care!
Joe

Joe,

Based upon my research, I would not trust the LiFePO4 batteries to have enough current capacity to handle the load of your accessories. The lithium battery manufacturers label their batteries with a "Pb Equivalent" rating for amp hours. However, this "Pb Equivalent" rating is more indicative of cranking power than reserve current capacity.

For example, I own a Shorai LFX14L2-BS12 battery. The bottom of this battery sports a label indicating it actually has a 4.0 Ah rating, which is only 29 percent of their "Pb Equivalent" rating. The LiFePO4 batteries crank very hard, but they will not sustain heavy current loads like a lead/acid battery. You might enjoy reading the following thread, which deals with this subject in great detail.

http://advrider.com/index.php?thread...llenge.770364/

I recommend you get the Motocross YTZ14S battery from BatteryStuff.com.

https://www.batterystuff.com/powersp...es/YTZ14S.html

This is a genuine Yuasa battery manufactured in Japan, but rebadged as Motocross, and sold in the United States. I have purchased two Motocross batteries from BatteryStuff, and they have performed beautifully. The 11.2 Ah capacity of the YTZ14S battery will serve you well with all the accessories you run, especially the heated jacket and gloves.

BatteryStuff offers an excellent price for this Motocross battery, and their customer service is superb. I highly recommend this vendor.