FAQ
1) Currently I use AGM battery but not satisfied due to poor perfomance, How can I upgrade to 12 volt lithium battery ?
This a good question, actually if to replace AGM or Gel or Lead acid Battery with lithium battery, there are some critical factor needed to taken into consideration, such as battery capacity, output power, and the dimensions if space is limited in your RV. Of course, this is basically not a issue since lifepo4 lithium battery has higher energy density, which means for the same battery energy, it only takes up less than 40% of what lead acid or gel or AGM battery takes. Another point you need to pay attention to is the charger, for 12v lithium battery, the recommended charging voltage is 14.6V, our lithium iron phosphate batteries works perfectly with almost all kinds of charger in the market. But to ensure 100% compatibility, you can also contact RJ sales, our staff will be more than glad to help you check it out.
2) I already have my own charger which is for lead-acid battery (AGM or Gel) , I am wondering is it compatible to charge RJ 12 Volt lithium batteries?
Generally speaking, Yes.our lithium batteries are compatible with many kinds of charger. However, it is not recommended to use flooded charge to charge our 12v lithium battery since its charging voltage is not suitable for lithium battery.although it won’t cause any damage to the battery, but the charging process won’t be smooth since it may disconnect and warning. It is strongly recommended that you first consult with our RJ sales staff for this specific battery and charger to make sure you have a satifactory shopping experience.
3)What if I charge RJ 12V Lithium battery with an alternator generator?
That is no problem at all. Our 12v lithium batteries can be charged with alternator generator. This is no difference to charge the batteries from public grid. All you need to do is pick a matching charger and connect it to both the alternator and the 12v lithium batteries. Again if you are sure with details, our RJ Staff are here to help you with it, pls feel free to contact us, we will send you specifications and some instructions if needed.
4) How quickly can a 12 v lithium batteries be fully charged?
Max charging rate of Our 12 v lithium batteries is as high as 1c, which is 1hour. According to IEC, the standard charging rate is 0.2C, which is 5hours. We recommend you to limit the charging time under 1C since it will be good to battery lifecycle. Not our l2 lithium batteries can be discharge at 100%DOD, and if charged below 1C, it can reach as many as 6000cycles.
5) Can you help explain function of BMS?
BMS is short for Battery Management System. It protects 12 lithium batteries from :
1. over charged
2. over discharge
3. over current
4. short circuit
5. cell balancing functions
6. RS485/RS232 communication function
7. over heat protection
6) Can you cusomize the terminals of 12 v lithium batteries for me?
Exactly, customization is available. We have M6/M8/M10 batteries terminal and bolts and Anderson plug available. Simply contact us and advise what application is and our RJ staff will help you pick the right terminals perfectly for your use.
7) Can I place the 12 v lithium batteries in any position if I have limited space?
Yes, just go ahead. Unlike lead acid battery, Our RJ 12 volt lithium batteries contains no liguid inside, so there is no problem to place it in any position you want. This is very flexible and convenient when you have limited space in RV or in a marine boat.
8) Can your LiFePO4 12v lithium batteries perform in low temperature ?
Yes. Our RJ 12V lithium batteires has very outstanding performance in cold temperature compared to lead acid battery or AGM or Gel. We have temperature test report which can be sent to you for reference if needed. Our battereis can perform well as low as -20 degrees.
9) Can your LiFePO4 12v lithium batteries perform in high temperature ?
Our 12v lithium battery has excellent performance when in high temperature, actually lifepo4 chemistry becomes more active when in hot temperature. This enables it to give more capacity than it is rated in normal temperature.our solar project which place the lithim batteries outdoors where temperature reach as high as 70 degree, and our RJ 12v lithim batteries works very well for years.
10) Can your 12 v lithium batteries discharge to a extent of 100%?
Unlike lead acid battery that you always need to keep a extra energy inside the battery, our RJ 12v lithium battery can be discharged 100% without any damage to the battery. This is a big advantage of lithium battery to lead acid battery or AGM or Gel. Taken lifecycles and capability of 100% discharge into consideration, to replace old lead acid battery with 12v ltihium battery is very economic in a long run.
