# Battery & Chargers **URL:** https://community.electricforum.com/c/engines-batteries-and-charging-systems/67.md?page=4 [Latest](https://community.electricforum.com/latest.md) · [Categories](https://community.electricforum.com/categories.md) · [Tags](https://community.electricforum.com/tags.md) **Page:** 5 --- ## [Flashing battery charge level light on dash](https://community.electricforum.com/t/flashing-battery-charge-level-light-on-dash/14081)
**Author:** [@Teameffort](https://community.electricforum.com/u/Teameffort)\ **Replies:** 0\ **Last updated:** [July 8, 2018, 6:35pm UTC](https://community.electricforum.com/t/flashing-battery-charge-level-light-on-dash/14081 "2018-07-08T18:35:24Z")
Howdy. I have a 2wd ruff n tuff cart. The dash light that shows the charge level started blinking yesterday. It still goes but obviously something’s not right. I’d appreciate any recommendations. Candy --- ## [Help with Delta Q Charger Question](https://community.electricforum.com/t/help-with-delta-q-charger-question/14075)
**Author:** [@btidmore](https://community.electricforum.com/u/btidmore)\ **Replies:** 2\ **Last updated:** [July 8, 2018, 11:15am UTC](https://community.electricforum.com/t/help-with-delta-q-charger-question/14075 "2018-07-08T11:15:07Z")
I have a 2005 GEM with the Delta Q charger and brand new GEM factory gel batteries (I got 13-years and over 9,000 miles on the last set), When I power it up it goes thru the self check and then after a few seconds the … --- ## [2002 Gem Charge Level](https://community.electricforum.com/t/2002-gem-charge-level/13992)
**Author:** [@MRSLR](https://community.electricforum.com/u/MRSLR)\ **Replies:** 4\ **Last updated:** [July 2, 2018, 5:55am UTC](https://community.electricforum.com/t/2002-gem-charge-level/13992 "2018-07-02T05:55:27Z")
Hey I just installed new Trojan batteries in my 2002 Gem 4 seater. Everything is running well except the charging level indicator will not change from “90”. I’ve turned off power under the back seat and reset it but stil… --- ## [Dead Delta q charger](https://community.electricforum.com/t/dead-delta-q-charger/13872)
**Author:** [@Reddevil](https://community.electricforum.com/u/Reddevil)\ **Replies:** 16\ **Last updated:** [June 13, 2018, 6:10pm UTC](https://community.electricforum.com/t/dead-delta-q-charger/13872 "2018-06-13T18:10:44Z")
My Delta q has failed and want to see if you think its worth fixing, or now just a parts piece? 2002 e825 with FLA Trojans. New pack in October 2016 and has worked fine til (of course) over one year warranty. Charger st… --- ## [Charging a trailer battery through a trolley plug](https://community.electricforum.com/t/charging-a-trailer-battery-through-a-trolley-plug/13858)
**Author:** [@inc](https://community.electricforum.com/u/inc)\ **Replies:** 1\ **Last updated:** [June 6, 2018, 2:37pm UTC](https://community.electricforum.com/t/charging-a-trailer-battery-through-a-trolley-plug/13858 "2018-06-06T14:37:26Z")
I’m having a question about charging a trailer battery through a trolley plug. A 13-pin trolley plug is a continuous flow of trailer battery charging straight from the battery (pin 9 and 13) The question is, can I dire… --- ## [Solar Panels for Duffy Electric Boat](https://community.electricforum.com/t/solar-panels-for-duffy-electric-boat/13829)
**Author:** [@JohnK](https://community.electricforum.com/u/JohnK)\ **Replies:** 2\ **Last updated:** [June 4, 2018, 1:18pm UTC](https://community.electricforum.com/t/solar-panels-for-duffy-electric-boat/13829 "2018-06-04T13:18:49Z")
Hi, I am purchasing a Duffy Electric Boat https://duffyboats.com/ I would like to charge this using solar panels. Does anyone have any guidance or suggestions about how to set this up. It is 6 connected batteries in… --- ## [How to use speaker without Battery Cover](https://community.electricforum.com/t/how-to-use-speaker-without-battery-cover/13825)
**Author:** [@fred1rav](https://community.electricforum.com/u/fred1rav)\ **Replies:** 0\ **Last updated:** [May 31, 2018, 10:46pm UTC](https://community.electricforum.com/t/how-to-use-speaker-without-battery-cover/13825 "2018-05-31T22:46:32Z")
Greetings, I Have a speaker that I have managed to lost the cover for the battery storage. It uses 8\*AA-batteries. Is it any way for me to use the speaker, or do I need to find a new cover somewhere? \[batterier\] --- ## [220v charging by onboard Delta charger](https://community.electricforum.com/t/220v-charging-by-onboard-delta-charger/13781)
**Author:** [@panlasi](https://community.electricforum.com/u/panlasi)\ **Replies:** 5\ **Last updated:** [May 25, 2018, 2:15am UTC](https://community.electricforum.com/t/220v-charging-by-onboard-delta-charger/13781 "2018-05-25T02:15:20Z")
Just purchased a 2008 E2. Have not looked closely at charger but wonder if: Capable of 220V input, if so is there a switch on charger for it or is the Delta charger multi voltage input 110v-240v? I have an AV 32 amp … --- ## [UK government invest £2.2 million in new EV charging technology](https://community.electricforum.com/t/uk-government-invest-2-2-million-in-new-ev-charging-technology/11932)
**Author:** [@Cleanenergy](https://community.electricforum.com/u/Cleanenergy)\ **Replies:** 1\ **Last updated:** [May 23, 2018, 8:08am UTC](https://community.electricforum.com/t/uk-government-invest-2-2-million-in-new-ev-charging-technology/11932 "2018-05-23T08:08:37Z")
Check out this very interesting article which confirms that the UK government is investing £2.2 million into new EV charging technology:- http://www.builderandengineer.co.uk/news/department-transport-invests-%C2%A322m-… --- ## [8-24s Bluetooth bms thread](https://community.electricforum.com/t/8-24s-bluetooth-bms-thread/13711)
**Author:** [@Inwo](https://community.electricforum.com/u/Inwo)\ **Replies:** 7\ **Last updated:** [May 12, 2018, 10:32pm UTC](https://community.electricforum.com/t/8-24s-bluetooth-bms-thread/13711 "2018-05-12T22:32:26Z")
A few of these are getting used in the USA now. Mine has been in use a couple years. Mostly Chinese menus. It didn’t like a 10,000 amp short circuit so I removed it for repair. Only 2 shorted mosfets. This was a good… --- ## [Bluetooth to Volt connections](https://community.electricforum.com/t/bluetooth-to-volt-connections/13698)
**Author:** [@Inwo](https://community.electricforum.com/u/Inwo)\ **Replies:** 2\ **Last updated:** [May 7, 2018, 6:50pm UTC](https://community.electricforum.com/t/bluetooth-to-volt-connections/13698 "2018-05-07T18:50:06Z")
No time to make things look pretty. Testing harness and bms for Vern. Ignore the middle 6s Volt module. I’m using the two 12s modules in series to test connections. This is the harness I offer for Volt batteries. The… --- ## [Gem gel batteries losing power quickly](https://community.electricforum.com/t/gem-gel-batteries-losing-power-quickly/13680)
**Author:** [@Danesh88](https://community.electricforum.com/u/Danesh88)\ **Replies:** 1\ **Last updated:** [May 5, 2018, 7:40pm UTC](https://community.electricforum.com/t/gem-gel-batteries-losing-power-quickly/13680 "2018-05-05T19:40:23Z")
I just got a 2002 gem e825 and finished rebuilding it. My mechanic tested the batteries and said they hold a good charge, but when they get down to about 70% reading on the meter, the cart slows down significantly. It wi… --- ## [Lithium titanate](https://community.electricforum.com/t/lithium-titanate/5985)
**Author:** [@Inwo](https://community.electricforum.com/u/Inwo)\ **Replies:** 14\ **Last updated:** [May 2, 2018, 7:59am UTC](https://community.electricforum.com/t/lithium-titanate/5985 "2018-05-02T07:59:28Z")
Charging central. 12 15ah packs being discharged. 4volt 1,000ah pack connected to my welder. Only thing I have big enough to charge this one. As the others, completely doa. :frowning: The pouch cells are deliveri… --- ## [2002 Gem w/Zivan - Updated?](https://community.electricforum.com/t/2002-gem-w-zivan-updated/2663)
**Author:** [@LuvMyTJ](https://community.electricforum.com/u/LuvMyTJ)\ **Replies:** 8\ **Last updated:** [April 13, 2018, 9:01pm UTC](https://community.electricforum.com/t/2002-gem-w-zivan-updated/2663 "2018-04-13T21:01:31Z")
I have a new-to-me 2002 Gem with the Zivan charger. This car was built in December of 2002. It has the rotary switch on the top of the charger to change the profile & the potted DC to DC module next to it. There are no s… --- ## [Pro Charging Systems SS3 Charger With Lithium Profile](https://community.electricforum.com/t/pro-charging-systems-ss3-charger-with-lithium-profile/13431)
**Author:** [@hadawayj](https://community.electricforum.com/u/hadawayj)\ **Replies:** 0\ **Last updated:** [March 12, 2018, 5:52pm UTC](https://community.electricforum.com/t/pro-charging-systems-ss3-charger-with-lithium-profile/13431 "2018-03-12T17:52:26Z")
I have two SS3 chargers with Lithium Profile for sale. Three independent 10 amp leads ( need to buy both for GEM CAR. These have been used about 1 year since new on GEM CAR. Price $325.00 each or both for $575.00. Sh… --- ## [GEM CAR QUITS Suddenly](https://community.electricforum.com/t/gem-car-quits-suddenly/13327)
**Author:** [@hadawayj](https://community.electricforum.com/u/hadawayj)\ **Replies:** 16\ **Last updated:** [March 2, 2018, 5:09pm UTC](https://community.electricforum.com/t/gem-car-quits-suddenly/13327 "2018-03-02T17:09:02Z")
I put 6 Smart Batteries in my 2015 GEM. Since then my mileage has been around 22 per charge. The GEM just, suddenly, quits without warning. After a few minutes, and turning the master switch off and then on the power … --- ## [GEM car settings](https://community.electricforum.com/t/gem-car-settings/13346)
**Author:** [@hadawayj](https://community.electricforum.com/u/hadawayj)\ **Replies:** 1\ **Last updated:** [March 1, 2018, 3:43pm UTC](https://community.electricforum.com/t/gem-car-settings/13346 "2018-03-01T15:43:06Z")
Can someone publish the codes and proper settings that come up on the display when using the turn signal and mileage reset switch. Also what each does and is used for. --- ## [LED Micro Lights Project](https://community.electricforum.com/t/led-micro-lights-project/13191)
**Author:** [@ericwalker](https://community.electricforum.com/u/ericwalker)\ **Replies:** 0\ **Last updated:** [December 29, 2017, 10:58pm UTC](https://community.electricforum.com/t/led-micro-lights-project/13191 "2017-12-29T22:58:21Z")
I need to know the correct power needs to string 6 LED Micro Lights together in order to purchase the correct battery or power supply to run the 6 strings continuously for up to 8 hours. Each string is powered by 3 - 1.… --- ## [Ride-4-Fun charger, are they worth it?](https://community.electricforum.com/t/ride-4-fun-charger-are-they-worth-it/13184)
**Author:** [@Pete1](https://community.electricforum.com/u/Pete1)\ **Replies:** 8\ **Last updated:** [December 28, 2017, 9:17am UTC](https://community.electricforum.com/t/ride-4-fun-charger-are-they-worth-it/13184 "2017-12-28T09:17:25Z")
Will a Ride-4-Fun charger extend battery life compared to the onboard 2009 GEM e2 charger? --- ## [Zivan charger won't charge](https://community.electricforum.com/t/zivan-charger-wont-charge/12383)
**Author:** [@Samson](https://community.electricforum.com/u/Samson)\ **Replies:** 1\ **Last updated:** [December 16, 2017, 9:56am UTC](https://community.electricforum.com/t/zivan-charger-wont-charge/12383 "2017-12-16T09:56:15Z")
My zivan charger blinks yellow green and beeps. I have gel batteries and have it set to c for gel batteries. What am I doing wrong!? --- ## [Sealed Gel type Lead Acid Batteries](https://community.electricforum.com/t/sealed-gel-type-lead-acid-batteries/13137)
**Author:** [@Tariq](https://community.electricforum.com/u/Tariq)\ **Replies:** 2\ **Last updated:** [December 15, 2017, 3:42am UTC](https://community.electricforum.com/t/sealed-gel-type-lead-acid-batteries/13137 "2017-12-15T03:42:27Z")
Hi, i have a AEG UPS of 220KVA rating with TWO battery banks (2x 32 batteries of 12v, 100Ah) connected in parallel. Due to weakening of batteries in one battery bank, i removed one battery bank. Then i connected only ON… --- ## [1st time public Level 2 install: get fancy bollard ($$$) or plain-Jane charger on budget?](https://community.electricforum.com/t/1st-time-public-level-2-install-get-fancy-bollard-or-plain-jane-charger-on-budget/11757)
**Author:** [@EVCurious8](https://community.electricforum.com/u/EVCurious8)\ **Replies:** 9\ **Last updated:** [November 29, 2017, 5:59pm UTC](https://community.electricforum.com/t/1st-time-public-level-2-install-get-fancy-bollard-or-plain-jane-charger-on-budget/11757 "2017-11-29T17:59:09Z")
I’m a sustainability coordinator at a rural Midwestern non-profit of ~200 co-workers supporting a diversity of operations (retreat center, tiny college, nursing home, etc). We are behind the curve as to EV adoption. Ther… --- ## [Ultra Cheap Dash Voltage and Percent Monitor](https://community.electricforum.com/t/ultra-cheap-dash-voltage-and-percent-monitor/13067)
**Author:** [@electriceccentric](https://community.electricforum.com/u/electriceccentric)\ **Replies:** 0\ **Last updated:** [November 29, 2017, 2:31pm UTC](https://community.electricforum.com/t/ultra-cheap-dash-voltage-and-percent-monitor/13067 "2017-11-29T14:31:21Z")
For five bucks??? A lighted readout and everything. Calibration to many systems. --- ## [charging on long journeys: newbie question](https://community.electricforum.com/t/charging-on-long-journeys-newbie-question/13063)
**Author:** [@mjw](https://community.electricforum.com/u/mjw)\ **Replies:** 0\ **Last updated:** [November 27, 2017, 7:49pm UTC](https://community.electricforum.com/t/charging-on-long-journeys-newbie-question/13063 "2017-11-27T19:49:45Z")
Hive mind! I’ve a question for all electric car heads. I’d like a Nissan Leaf in a perfect world but I tend to drive half way up the country every other month. But if I drive from my house to Glasgow, 232 miles away, and… --- ## [Is charging battery over long period of time safe?](https://community.electricforum.com/t/is-charging-battery-over-long-period-of-time-safe/12618)
**Author:** [@olsy](https://community.electricforum.com/u/olsy)\ **Replies:** 6\ **Last updated:** [November 17, 2017, 10:54am UTC](https://community.electricforum.com/t/is-charging-battery-over-long-period-of-time-safe/12618 "2017-11-17T10:54:03Z")
Hi! I have just picked up a Ring RPP225 12v 800amp powerpack, and on seeing that it takes over 30 hours (dont know how long specifically) I realised it may go into the time that I would go on holiday! Is it safe to lea… --- ## [Charging problem on my g-wizz](https://community.electricforum.com/t/charging-problem-on-my-g-wizz/12912)
**Author:** [@Smartypants](https://community.electricforum.com/u/Smartypants)\ **Replies:** 0\ **Last updated:** [October 10, 2017, 1:48pm UTC](https://community.electricforum.com/t/charging-problem-on-my-g-wizz/12912 "2017-10-10T13:48:49Z")
I have an 05 plate g-wizz New batteries but can’t get a charge to get out of the orange on the level meter, only about 20/25% I have charged every battery individually to a full state but when I turn the car on the lev… --- ## [100 ah prismatic cells](https://community.electricforum.com/t/100-ah-prismatic-cells/12669)
**Author:** [@Inwo](https://community.electricforum.com/u/Inwo)\ **Replies:** 2\ **Last updated:** [August 11, 2017, 3:09am UTC](https://community.electricforum.com/t/100-ah-prismatic-cells/12669 "2017-08-11T03:09:39Z")
I’m bidding on a quantity of 100ah cells. At 3.2v nominal it takes 24s for a 72v Gem. Hope to have enough for about 20 cars. 24 just happens to be maximum for bms-24. There are other solutions available for 32s and b… --- ## [Quick Charger questions](https://community.electricforum.com/t/quick-charger-questions/12588)
**Author:** [@K\_hic](https://community.electricforum.com/u/K_hic)\ **Replies:** 4\ **Last updated:** [July 21, 2017, 9:00pm UTC](https://community.electricforum.com/t/quick-charger-questions/12588 "2017-07-21T21:00:02Z")
I think my Delta Q, in my 2007 Gem e4 is shot. It flashes 6 red light and even though it isn’t plugged in, the Gem thinks it’s still charging. I have read through the forum and it still not clear to me. So here are my qu… --- ## [More Volt uses - forklift](https://community.electricforum.com/t/more-volt-uses-forklift/12413)
**Author:** [@Inwo](https://community.electricforum.com/u/Inwo)\ **Replies:** 0\ **Last updated:** [May 28, 2017, 3:53am UTC](https://community.electricforum.com/t/more-volt-uses-forklift/12413 "2017-05-28T03:53:30Z")
Building 10s 4p pack. 200ah 36v for brothers forklift. Idled 2s in each 12s module to limit voltage. A waste of 8s overall. Yet this is only 1/2 of a full Volt battery. Newest iteration Volt boards will neatly Daisy chai… --- ## [Electrical issue](https://community.electricforum.com/t/electrical-issue/12388)
**Author:** [@gem2002](https://community.electricforum.com/u/gem2002)\ **Replies:** 0\ **Last updated:** [May 22, 2017, 10:36pm UTC](https://community.electricforum.com/t/electrical-issue/12388 "2017-05-22T22:36:22Z")
I have a 2002 E825 gem.This year when I brought it out from storage I started to have issues.When the ignition is turned off and the E brake is off the display board flashes all Zero's or what ever level the batteries ar… [Previous page](https://community.electricforum.com/c/engines-batteries-and-charging-systems/67.md?page=3) [Next page](https://community.electricforum.com/c/engines-batteries-and-charging-systems/67.md?page=5)