Quote Originally Posted by Justloadit View Post
Can you take a picture of the "Black Thing" that got hot.
Does it have 2 or 3 legs?
This is your department, I was hoping you could give us a little better understanding of why this component would get so hot.

I was told it has to do with the charge characteristics of the lithium battery. Maybe you can do a better job of explaining more about charging lithium batteries and why it wqould heat up components on a the power PCB.

I have a blue nova and a seuri prod lithium battery on other test rigs (X64 alarm panels) and they seem to be doing ok, I have drained them both and recharged them both, I haven't scanned them with the thermal imager yet. I plan to drain them both till the BMS low voltage cutout, then power them up still connected to the alarms panels and do a thermal test.

At the end of the day it doesnt help dropping in a lithium battery if t is going to affect the PCB life span due to overheating issues. I would rather just stick to using lead acid for the next 12 months. I hear both suppliers are in the process of testing new PCB's with lithium charging capabilities.

By the way I have cut open both Blue Nova and the securi prod lithium drop in batteries, and as expected you basically get what you pay.

The Blue is a well built unit with the cells in a solid resin, compared to the Securi prod, its just look like a home made shrink wrap with the cells enclosed with the BMS, dropped into a 7 amp/hr PVC enclosure.

I would love to see the cells and BMS specifications for both these batteries.

From the little research I have done, Blue Nova has different levels of lithium cells, one which is rated for daily use and the other for backup. The life cycles and warranties are considerably different.

I believe it is important you look at a life cycles, the BMS and cell warranty period when deciding on the lithium battery you buy. It is also important to check the charge and discharge rates.

I believe the battery industry should be regulated with standard data and specs shared by everyone.

I am no expert in this field, just trying to find my way through the maize, feel free to set the record straight and share your view.