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TOPIC: 76 DT400 batteries

76 DT400 batteries 13 Sep 2018 12:39 #1

  • run103
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I have been trying to find a different battery system for My DT400. It keeps vibrating or cooking the acid out of the small OEM type lead acid batteries. The bike has a 6 to 36 volt LED headlight bulb and a tail light and brake light. None of the gauge bulbs work and it has no signal light system. If I install a 5 cell NiCad the tail light and brake light work fine but I have no headlight. With a lead acid battery all works fine. I'm have a problem with what in the ni-cad battery is different in the lead acid that is changing how the headlight works.

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76 DT400 batteries 13 Sep 2018 16:38 #2

  • 1971DT250
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This seller lists this battery fitting your bike. Double check the dimensions.



I use them in my '73 DT and RT Enduros. They hold a charge for long periods and last for years.

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The hours spent riding my Enduros is not deducted from my life span.

76 DT400 batteries 13 Sep 2018 22:58 #3

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they fit the dt3 but not the dt360 and dt250-400 from 74 to 76 but I am sure that is the type I would like
thx doug

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76 DT400 batteries 14 Sep 2018 02:57 #4

  • Makotosun
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I have been using NP4-6 batteries in my DT400B/C bikes.



These need to lay on their side and you need to adapt connections, but they work well and seem to last fine. They are a gel sealed battery so no leakage. You can get them online for under $15. I also saw a compatible one the other day at my local Lowe’s Hardware in the lighting department. (These are designed for use in emergency lighting setups).

All lighting should work fine. There is a version of this that comes with pigtails, but I don’t know the exact code for it.
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76 DT400 batteries 14 Sep 2018 05:15 #5

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Makotosun wrote: I have been using NP4-6 batteries in my DT400B/C bikes.



These need to lay on their side and you need to adapt connections, but they work well and seem to last fine. They are a gel sealed battery so no leakage. You can get them online for under $15. I also saw a compatible one the other day at my local Lowe’s Hardware in the lighting department. (These are designed for use in emergency lighting setups).

All lighting should work fine. There is a version of this that comes with pigtails, but I don’t know the exact code for it.


I've been using these sealed batteries in my 250A, 400C and XT500. I pretty much ignore them, they work great and last for years. I have the Genesis brand which I think are made by Yuasa. The last one I bought from ebay was around $9. The one Makotosun mentioned with the pig tails, I think is the Universal brand. The pig tails made for a neat and easy installation but they were very unreliable, failed after a short time.
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