Recent content by Mike Mas

Hello DIY Users - After studying Transit’s new “All Wheel Drive” chassis and Thor’s B+ Compass RV for over a year now, I finally completed my In-Depth review and would like to share my findings and images with others on this forum to include a Dual Battery Lithium System I designed for RV's and...

Any and all Lithium batteries need to be charged to 100% weekly or so to both calibrate the SOC meter and to balance the cells. Unless you are planning on keeping the batteries for 10-15 years, don't worry about charging to 100%. In addition, almost every RV inverter will charge to 100%...

Thanks for the reply - that's the same exact battery I used on my 12 volt house battery upgrade. He should have some great results, I replaced my 6 flooded batteries with the one 315 ah battery and it has tons more capacity. Seemed like my flooded batteries were always dead if I un-plugged...

Hello DIY Users, I just completed my latest (Independent Non-Sponcered) Lithium RV upgrade video named “5112 Dual Voltage - Dual Inverter - RV Lithium System”. The 5112 system is unique and different than any other lithium system in operation today. I designed the 5112 System for larger Class A...

I'm using Lithionics 12 and 51 volt lithium packs. The 12 volt pack is 630 amp hours. There is a world of difference and a number of grades when it comes to lithium cells. Most of the import batteries are going to have the lowest grade cells but still work well for most applications. Mike

If you take reasonable care of a lithium battery (providing its good when you buy it) there's no reason it won't last 10-15 years. Lithium is really an investment. Thanks Mike

Thanks for the reply - Regretfully because of the extreme high amperage of a 12 volt system, they are not the best choice for continuous high amperage since it heats the components like fuses cables etc. creating losses and voltage sag. Making matters worse a 100 ah flooded battery can only...

Hello and thanks for the reply - I just helped a friend install a 300 ah battery in his coach and the cost which was $1,039 for the 300 ah lithium was less than it would be to replace his 6 flooded batteries. Of course the biigest advantage is you can draw lithium down to 10-15 % where a flooded...

I am totally impressed by the generator and its sofeware operating system. Super nice piece! thanks for sharing. Mike

You can do it either way however - You might be better off charging all the batteries together to keep the batteries cell voltages the same for voltage and amperage discharging. Mike

If you're looking for solar storage, you should consider lithium, flooded and AGM are more for starting and not really designed nor have any real capacity to store much solar, unless you have many many of them. Thanks Mike

It's impossible to extract 240 amps from a 240 amp hour battery. For the most part amp hour ratings are for smoke and mirros to confuse consumers. At best you'll only get 50-60% - any more destroys the battery chemistry. You should look into a lithium pack! Thanks Mike

I looked over the kits they offer - I feel you would be better off putting your own system together. 100 ah battery is not going to store enough power to do much other than lighting. There are 300 ah lithium batteries going for under a grand. I would not start a system with lessthan that...

Most of the auto Gen Start protocols are pretty much the same, they work on set voltage or temperature settings and have the ability to exercise at set time levels. What brand name module did you find? Mike

Hello - You have to be careful with DIY lithium batteries. You should have a good firm understanding of lithium chemistry and the operation of battery control modules and accs. since there is always a potential of a fire. Thanks Mike