I am Charging two new Group 29 marine deep cycle batteries with the XC103W. When tested with a voltmeter, it was consistently reading typically about 13-14v during maintain mode, but now, during maintain mode, the voltmeter reads between 15.5 and 16v and has subsequently read "F06" (thermal runaway) and shut down. Connections were checked and I have repeated this process three times with the same results (15.5v-16v and later "FO6"). Any suggestions on why this is happening? I am Charging two new Group 29 marine deep cycle batteries with the XC103W. When tested with a voltmeter, it was consistently reading typically about 13-14v during maintain mode, but now, during... » Read More I am Charging two new Group 29 marine deep cycle batteries with the XC103W. When tested with a voltmeter, it was consistently reading typically about 13-14v during maintain mode, but now, during maintain mode, the voltmeter reads between 15.5 and 16v and has subsequently read "F06" (thermal runaway) and shut down. Connections were checked and I have repeated this process three times with the same results (15.5v-16v and later "FO6"). Any suggestions on why this is happening? « Show Less
1053734
Mine worked for about 90minutes. I almost got one charge out of it. These units are crap, return it and try something else.
69999
try charging one at a time see if that helps..make sure fan is running..or try a different setting...other than that i dont know
1487936
My charger makes a similar clicking sound in the float mode, which appears to be its normal cycling process. It's holding my batteries at 13.3 volts which is near ideal and is apparently not over-charging.
310350
I own UltraFire and Tenergy Brand of 18650@3000ma. I have 5 set of them. I only had 1 bad one that won't hold a charge in storage. The rest seem fine I measure the voltage on them to check. After a fresh charge it measure 4-4.3 volts. Then it drop to 3.8,4.1 for over about 2 month. I think like everything a little luck is involve. I read the other peoples reviews and 4-2 stars to me if the price is right I'll take a chance. So far it a good deal Beside they are all made in CHINA no matter which brand. The Trustfire charger works fine too. Voltage on batteries checked before this reply...
1766458
The unit is not damaged when reversing current, but the meter does not display the reversed current. I have used this when charging and discharging my LiPo's. With my wiring set up while cycling I can read total discharge, but not re-charge. The display isn't blank under those circumstances, it just doesn't change.
1166862
That's normal it is reading the alt ouput of the the vehicle when it is running. when the vehicle is not running it should be a steady voltage reading.
639416
I have two of the boats, so I have two chargers. The charging of the batteries is a bit clunky. Sometimes I will take what I think is a fully charged battery and as soon as it hits the water the remote starts beeping indicating a low battery. The boat runs fast and for a long time, so I'm pretty sure the low battery signal is flawed. Other times, the battery is fully charged and only lasts a short time. Sorry, that is no help, but your charger may be working fine and the boat/remote are acting weird...Happy boating.
777234
There is no reference to desulfation mode on the face of the charger. There is a switch which allows one to choose between a conventional low-maintenance battery and a maintenance-free deep cycle battery. I would also tell you that my unit has been working well except the DC amp gauge stopped working the first day and I can find no way to get it repaired or talk to a knowledgeable representative. It has charged many batteries satisfactorily in this condition.
1984477
Optima and nearly all mfr's. of AGM batteries like these recommend a three stage, digital, charger. Stage 1 is a bulk delivery, at peak voltage, Stage 2 is a tapering charge; still at higher voltage but not continuous delivery, and Stage 3 is more of a maintenance mode where the charger only delivers capacity to the battery if it needs it, while maintaining the standing voltage at around 13.5VDC. I have my pair connected to a Digital MinnKota 210C(two 5A banks), and I use a Schumacher 15A single bank ship and shore marine model charger I purchased on the web as a backup. Both work exceptionally well with the Optima's, do not overcharge them, and keep the standing voltage where it needs to be. Optima and nearly all mfr's. of AGM batteries like these recommend a three stage, digital, charger. Stage 1 is a bulk delivery, at peak voltage, Stage 2 is a tapering charge; still at higher voltage but not continuous delivery, and Stage 3 is more of a maintenance mode where the charger only delivers capacity to the battery if it needs it, while maintaining the standing voltage at around 13.5VDC. I have my pair connected to a Digital MinnKota 210C(two 5A banks), and I use a Schumacher 15A single bank ship and shore marine model charger I purchased on the web as a backup. Both work... » Read More Optima and nearly all mfr's. of AGM batteries like these recommend a three stage, digital, charger. Stage 1 is a bulk delivery, at peak voltage, Stage 2 is a tapering charge; still at higher voltage but not continuous delivery, and Stage 3 is more of a maintenance mode where the charger only delivers capacity to the battery if it needs it, while maintaining the standing voltage at around 13.5VDC. I have my pair connected to a Digital MinnKota 210C(two 5A banks), and I use a Schumacher 15A single bank ship and shore marine model charger I purchased on the web as a backup. Both work exceptionally well with the Optima's, do not overcharge them, and keep the standing voltage where it needs to be. « Show Less
1314007
I also noted that deep cycle was left off these units , I have found that using the standard position on deep cycle will go to desulfate mode on deep cycle when determined by the computer. since the computer is evaluating the connected battery as it is charged I just assumed the company decided it was not necessary to have another position. if this is the case they should have included a note with these units.
2259693
I noticed it doing this on my 75AH battery. But on my 35AH battery it does not do this, or it hasn't yet. I think it has to do with the battery size confusing the voltage reading. Batteries are still tricky to master. It's better that it's cautious during charging rather than brute forcing the battery into oblivion is my guess as to why it's quirky. What size battery are you charging? There is a range specified in the owner manual. I think 75AH is the upper limit. Maybe that's why it's doing that on the larger battery.
1324598
My charger, a ThruNite MCCC-4, outputs a charging level of 4.2v. When the battery reaches this level, shown onLCD panel, it shuts off, fully charged. The battery "likes" to hold an operating voltage of 3.5, so using a charging voltage of 3.8 would be conservative, and certainly safe. These batteries are very robust, and will not take more than they're designed for.
1986356
I don' know. I believe letting/not letting them discharge is NOT an issue with this type (they don't have the ghost charge problems other models do) . I recharge mine when they still have life left and haven't noticed a shortened lifespan, but haven't done a formal experiment.
1793838
"Float/maintenance charging" is that voltage is continuously applied to maintain the battery in a fully charged state. This is not the case for this unit, since it is not specified or implied in the Instruction Manual. To properly maintain this unit, it is recommended that it be charged (w/switch in the OFF position) "immediately after each use, and once a month if not used. Failure to do this may," WILL "reduce the battery life dramatically." I have had other boosters that, when not maintained this way, lost complete charge and could not be recharged of restored.
1930678
Have not found any documentation available for upper limit of DC voltage on this motor.The typical output of a car or marine battery is approx, 13.6 volts. Just to be safe, wouldrecommend a (Low Voltage Dropout) LDO voltage regulator IC to keep output voltage to12 VDC. Motor is rated at 70 milliamps of current so be sure regulator can handle 1.5 timesthat amount for safety. This is a pretty stout little motor. Torque is apprx. 1.6 FtLb at 12"radius from shaft. That may not sound like much but it will move a lot of cartridge brass ina hopper for a reloader. Have not found any documentation available for upper limit of DC voltage on this motor.The typical output of a car or marine battery is approx, 13.6 volts. Just to be safe, wouldrecommend a (Low Voltage Dropout) LDO voltage regulator IC to keep output voltage to12 VDC. Motor is rated at 70 milliamps of current so be sure regulator can handle 1.5 timesthat amount for safety. This is a pretty stout little motor. Torque is apprx. 1.6 FtLb at 12"radius from shaft. That may not sound like much but it will move a lot of cartridge brass ina hopper for a... » Read More Have not found any documentation available for upper limit of DC voltage on this motor.The typical output of a car or marine battery is approx, 13.6 volts. Just to be safe, wouldrecommend a (Low Voltage Dropout) LDO voltage regulator IC to keep output voltage to12 VDC. Motor is rated at 70 milliamps of current so be sure regulator can handle 1.5 timesthat amount for safety. This is a pretty stout little motor. Torque is apprx. 1.6 FtLb at 12"radius from shaft. That may not sound like much but it will move a lot of cartridge brass ina hopper for a reloader. « Show Less
1083249
I have a dv6 1030us model and this battery works well with one caveat. When operating on battery for a period of time and reconnecting the power cord, the power information displayed by the icon in the lower right corner or the task bar indicates that the battery is not charging. However the charging information can be restored or reset by removing the battery for a few seconds and then reinserting the battery. Afterwards the battery status will show that it is charging and the charge status will eventually show 100% as expected. Other than this quirk the battery works fine and has a charge life about as good as the original. I have a dv6 1030us model and this battery works well with one caveat. When operating on battery for a period of time and reconnecting the power cord, the power information displayed by the icon in the lower right corner or the task bar indicates that the battery is not charging. However the charging information can be restored or reset by removing the battery for a few seconds and then reinserting the battery. Afterwards the battery status will show that it is charging and the charge status will eventually show 100% as expected. Other than this quirk the battery works fine and has a charge... » Read More I have a dv6 1030us model and this battery works well with one caveat. When operating on battery for a period of time and reconnecting the power cord, the power information displayed by the icon in the lower right corner or the task bar indicates that the battery is not charging. However the charging information can be restored or reset by removing the battery for a few seconds and then reinserting the battery. Afterwards the battery status will show that it is charging and the charge status will eventually show 100% as expected. Other than this quirk the battery works fine and has a charge life about as good as the original. « Show Less
1385395
I think they all do that. I have a separate battery monitor Trimetric. You really need a shunt on the battery negative for an accurate SOC state of charge. The MT-5 provides info about the current going in and out of the charge controller
899930
This is a known software bug in the Explorist line. Always set your battery type to 'alkaline' until the bug is found and fixed. This, and lots more info can be found at the magellaninsiders website. I am AzRoute66 and at your service along with a whole load of folks more experienced than I. By the way, your batteries are/were not inferior/defective/discharged - the unit just reported them that way.