Riding with no Battery

krat · 01-20-2020, 01:52 PM

Got a TBR7, can I wire the positive and negative cable ends together, kick start and run this beast without damage?

I can't keep the battery charged in this weather. It lives outside and I can't keep a trickle charger on it. I have to pull the battery out to preserve it and it is a hassle.

franque · 01-20-2020, 01:56 PM

The engine might run (you could verify that by disconnecting the battery and checking for spark when you kick it), but you'd need a capacitor to keep the electronics working.

**JerryHawk250** · 01-20-2020, 02:14 PM

Connecting the positive and negative cables is a bad idea. Good way to short out the charging system. I'm pretty sure the TBR7 has an AC CDI. Should be able to run without the battery. Just tape up the positive cable so it doesn't short out against the frame or negative cable.

bogieboy · 01-20-2020, 03:42 PM

Quote:

Originally Posted by JerryHawk250

Connecting the positive and negative cables is a bad idea. Good way to short out the charging system. I'm pretty sure the TBR7 has an AC CDI. Should be able to run without the battery. Just tape up the positive cable so it doesn't short out against the frame or negative cable.

jerry, i wouldnt recommend running it with the battery out without something to absorb the load for the charging system. i see too many lawn mowers thru my shop with the same half wave rectifier style Voltage regulator burned out because of the same mentality. if the rectifier has nowhere to sink the voltage (I.E. a battery or capacitor) it will take all the heat in the diodes of the voltage gate, overheat, and render it useless...

even if you have a battery that doesnt hold a charge, its better than no battery for the charging system... it atleast has somewhere to sink the voltage...

**JerryHawk250** · 01-20-2020, 03:55 PM

Quote:

Originally Posted by bogieboy

jerry, i wouldnt recommend running it with the battery out without something to absorb the load for the charging system. i see too many lawn mowers thru my shop with the same half wave rectifier style Voltage regulator burned out because of the same mentality. if the rectifier has nowhere to sink the voltage (I.E. a battery or capacitor) it will take all the heat in the diodes of the voltage gate, overheat, and render it useless...

even if you have a battery that doesnt hold a charge, its better than no battery for the charging system... it atleast has somewhere to sink the voltage...

I agree, I don't recommend running without a battery. I guess I should rephrase what I said.

bogieboy · 01-20-2020, 04:14 PM

Quote:

Originally Posted by JerryHawk250

I agree, I don't recommend running without a battery. I guess I should rephrase what I said.

so, to sum up what Jerry and i are saying, you Can run it without the battery, but its NOT recommended....LOL

franque · 01-21-2020, 05:37 AM

If you don't mind burning up your regulator... I would be interested in what might happen if the regulator was disconnected.

OneLeggedRider · 01-21-2020, 07:28 AM

The flywheel on my Scrambler 400 has been shaved for weight reduction, meaning the teeth for the electric starter have been milled off. But I still keep a battery in it just to keep the electrical system healthy.

And don't worry about preserving the stock POS battery, just leave it in there and kickstart it. If the battery's no good when the weather breaks it'll be a good opportunity to upgrade it.

bogieboy · 01-21-2020, 07:54 AM

Quote:

Originally Posted by franque

If you don't mind burning up your regulator... I would be interested in what might happen if the regulator was disconnected.

if i recall correctly, with the regulator disconnected, you would not get anything that has to have 12v to work, i.e. lights, horn, etc.

Mudflap · 01-21-2020, 08:44 AM

I don't know how the TBR is wired but some bikes like my old Lifan 200 run perfectly well with no battery and everything but the electric starter works normally. I've run it for many hundreds of miles with no battery.

diyRdie · 01-21-2020, 12:54 PM

So I'm thinking your battery is just trash. I had similar problems with my stock batt.now Iam running g an ES-TZ10S battery from big box store and my bike can sit out in single digits weather for weeks and still crank strong n true.

franque · 01-21-2020, 02:37 PM

Make sure you keep that thing on a tender, I saw more NEverStart batteries that were bad than anything else. I would just go to a discount battery and buy a Yuasa battery. Did it come factory with a -10 battery?

diyRdie · 01-21-2020, 03:46 PM

Quote:

Originally Posted by franque

-10 battery?

Hu?

franque · 01-22-2020, 05:21 AM

-10, as in "10" sized battery. I didn't feel like writing out the whole name. If you didn't know, the number and S/BS or L-BS (the L is for reversed from standard terminal orientation) are basically the only relevant info for getting a battery replaced. The letters before the number are just brand indication.

RedCrowRides · 01-29-2020, 01:25 PM

I've had decent luck with my original chinese stock battery but i have kept it on a motorcycle trickle charger when not being ridden from day one - that said , the battery provided with most chinese bikes is , by default, the least expensive to produce made the cheapest way possible battery they can get their little chopsticks holding hands on ,
a year or two is the most you are likely to see under the best of conditions, extreme cold temps and/or heavy loads such as extra lighting etc and yeah that will be significantly reduced. I'm sure there are folks who will say " i got 5 years on muh original chinese battery" but that would be the rare exception to the rule and not the norm . In short get a battery tender designed for a motorcycle and / or plan on getting a better replacement battery especially if you are up North.

01-20-2020, 01:52 PM	#1
krat Join Date: Nov 2019 Location: KY Posts: 258	Riding with no Battery Got a TBR7, can I wire the positive and negative cable ends together, kick start and run this beast without damage? I can't keep the battery charged in this weather. It lives outside and I can't keep a trickle charger on it. I have to pull the battery out to preserve it and it is a hassle.
	0

01-20-2020, 02:14 PM	#3
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,555	Connecting the positive and negative cables is a bad idea. Good way to short out the charging system. I'm pretty sure the TBR7 has an AC CDI. Should be able to run without the battery. Just tape up the positive cable so it doesn't short out against the frame or negative cable. __________________ 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel
	3

01-21-2020, 07:28 AM	#8
OneLeggedRider Join Date: Nov 2018 Location: Stockport, Oh. Posts: 1,442	The flywheel on my Scrambler 400 has been shaved for weight reduction, meaning the teeth for the electric starter have been milled off. But I still keep a battery in it just to keep the electrical system healthy. And don't worry about preserving the stock POS battery, just leave it in there and kickstart it. If the battery's no good when the weather breaks it'll be a good opportunity to upgrade it. __________________ ~ Don't poke the bear ~ M.M.I. Dean's List graduate class of '95 and Specialty welder 2020 Ice Bear Terifecta 150cc Trike 2011 Honda Foreman 500ES 4x4 2001 Polaris Scrambler 400
	0

01-21-2020, 12:54 PM	#11
diyRdie Join Date: May 2019 Location: Rockford, IL Posts: 98	So I'm thinking your battery is just trash. I had similar problems with my stock batt.now Iam running g an ES-TZ10S battery from big box store and my bike can sit out in single digits weather for weeks and still crank strong n true. __________________ Good judgment comes from experience, and often experience comes from bad judgment. MY BIKE'S THREAD
	1

01-29-2020, 01:25 PM	#15
RedCrowRides Join Date: Jun 2018 Location: Florida Posts: 759	I've had decent luck with my original chinese stock battery but i have kept it on a motorcycle trickle charger when not being ridden from day one - that said , the battery provided with most chinese bikes is , by default, the least expensive to produce made the cheapest way possible battery they can get their little chopsticks holding hands on , a year or two is the most you are likely to see under the best of conditions, extreme cold temps and/or heavy loads such as extra lighting etc and yeah that will be significantly reduced. I'm sure there are folks who will say " i got 5 years on muh original chinese battery" but that would be the rare exception to the rule and not the norm . In short get a battery tender designed for a motorcycle and / or plan on getting a better replacement battery especially if you are up North. __________________ 2001 Mustang GT 2004 Sportster 2018 VADER 2020 Orion RXB250L
	1

01-20-2020, 01:56 PM	#2
franque Join Date: Nov 2017 Location: Marseille, France -> Conakry, Guinea Posts: 1,481	The engine might run (you could verify that by disconnecting the battery and checking for spark when you kick it), but you'd need a capacitor to keep the electronics working.
	0

01-21-2020, 05:37 AM	#7
franque Join Date: Nov 2017 Location: Marseille, France -> Conakry, Guinea Posts: 1,481	If you don't mind burning up your regulator... I would be interested in what might happen if the regulator was disconnected.
	0

01-21-2020, 08:44 AM	#10
Mudflap Join Date: Sep 2014 Posts: 1,871	I don't know how the TBR is wired but some bikes like my old Lifan 200 run perfectly well with no battery and everything but the electric starter works normally. I've run it for many hundreds of miles with no battery.
	1

01-21-2020, 02:37 PM	#12
franque Join Date: Nov 2017 Location: Marseille, France -> Conakry, Guinea Posts: 1,481	Make sure you keep that thing on a tender, I saw more NEverStart batteries that were bad than anything else. I would just go to a discount battery and buy a Yuasa battery. Did it come factory with a -10 battery?
	0

01-22-2020, 05:21 AM	#14
franque Join Date: Nov 2017 Location: Marseille, France -> Conakry, Guinea Posts: 1,481	-10, as in "10" sized battery. I didn't feel like writing out the whole name. If you didn't know, the number and S/BS or L-BS (the L is for reversed from standard terminal orientation) are basically the only relevant info for getting a battery replaced. The letters before the number are just brand indication.
	0