# Loses speed after 1/4 mile

**URL:** <https://community.electricforum.com/t/loses-speed-after-1-4-mile/14287>\
**Category:** GEM Forum\
**Created:** [August 10, 2018, 9:32pm UTC](https://community.electricforum.com/t/loses-speed-after-1-4-mile/14287 "2018-08-10T21:32:01Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![newtogem](https://avatars.discourse-cdn.com/v4/letter/n/ecccb3/32.png) [@newtogem](https://community.electricforum.com/u/newtogem)\
**Post date:** [August 10, 2018, 9:32pm UTC](https://community.electricforum.com/t/loses-speed-after-1-4-mile/14287/1 "2018-08-10T21:32:01Z")

</div>

Greetings,  
Car was working great , 2004 e4. Drove it 1 mile, parked for 1/2 hour. Started driving home, lost power and began bucking approximately 1 mph and limped home. No maintenance light or codes. Next day tried it with doing nothing but charge, went 1mph. Today, after charge, 18mph for 1/4 mile then went down quickly to 3 - 4 mph. Saw few things, sensors, accelerator. Batteries… All six 1 year old. any ideas folks.

---

<div class="post-metadata">

**Author:** ![diymatt](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/diymatt/32/1822_2.png) [@diymatt](https://community.electricforum.com/u/diymatt)\
**Post date:** [August 10, 2018, 9:50pm UTC](https://community.electricforum.com/t/loses-speed-after-1-4-mile/14287/2 "2018-08-10T21:50:36Z")

</div>

You running lead or gel? Check all the batteries. Put a meter on them see what they are doing.

---

<div class="post-metadata">

**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\
**Post date:** [August 10, 2018, 10:29pm UTC](https://community.electricforum.com/t/loses-speed-after-1-4-mile/14287/3 "2018-08-10T22:29:53Z")

</div>

Stuck brushes, maybe?

---

<div class="post-metadata">

**Author:** ![diymatt](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/diymatt/32/1822_2.png) [@diymatt](https://community.electricforum.com/u/diymatt)\
**Post date:** [August 11, 2018, 12:38am UTC](https://community.electricforum.com/t/loses-speed-after-1-4-mile/14287/4 "2018-08-11T00:38:09Z")

</div>

Has your cart recently converted to vegetarian diet? Is it getting enough iron? Have you considered supplements?

---

<div class="post-metadata">

**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\
**Post date:** [August 12, 2018, 3:41pm UTC](https://community.electricforum.com/t/loses-speed-after-1-4-mile/14287/5 "2018-08-12T15:41:20Z")

</div>

Possible Bad battery or motor

---

<div class="post-metadata">

**Author:** ![dougl](https://avatars.discourse-cdn.com/v4/letter/d/b19c9b/32.png) [@dougl](https://community.electricforum.com/u/dougl)\
**Post date:** [August 13, 2018, 6:08pm UTC](https://community.electricforum.com/t/loses-speed-after-1-4-mile/14287/6 "2018-08-13T18:08:20Z")

</div>

#1, check the acid levels in every battery  
#2, check cables between batteries  
#3, check the battery voltage on each battery( SB \>=12.6V with no more than .2V variation )

if those check out ok  
#4, have a friend put it in forward while holding the brakes and give slight throttle and while he/she maintains some small amount of throttle quickly check each battery voltage.  
or, check the total voltage by removing the dashboard and measuring once across the controller input or the battery charger.

---

<div class="post-metadata">

**Author:** ![dge8332](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@dge8332](https://community.electricforum.com/u/dge8332)\
**Post date:** [August 15, 2018, 10:07am UTC](https://community.electricforum.com/t/loses-speed-after-1-4-mile/14287/7 "2018-08-15T10:07:06Z")

</div>

Check the accelerator. Ohm it out. I have a 2005 that lost power, wouldn’t hardly go. It was the accelerator. You’ll need the manual to get the correct values. I spent $1300 on a new set of trojan batteries before I figured out the problem.

---

<div class="post-metadata">

**Author:** ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\
**Post date:** [August 15, 2018, 2:30pm UTC](https://community.electricforum.com/t/loses-speed-after-1-4-mile/14287/8 "2018-08-15T14:30:55Z")

</div>

accelerator pedal is probably it