Like many I've started taking advantage of the longer runs and small size offerd by LiPo batteries in my subs. Their only downfall is they can be permanently damaged if discharged too far, so last summer I came up with a circuit that would let me easily monitor the voltage in my LiPos and give me an unmistakable warning when it was time end the patrol and return for a recharge. The idea was so well received I decided to turn it into a follow-on product to my ADF. So here it is - the LiPo Guard.
-Intuitive four LED “gas gauge” gives an instant indication of battery type (cell count) and charge level.
-When used in conjunction with a “missing pulse detector” failsafe device (ADF recommended) the LiPo Guard helps protect your batteries from damage due to over-discharge. Low battery warning is indicated by a forced surfacing after which you will not be able to dive. If you’re stuck on the surface, it’s time to come back for a recharge!
-No setup required. LiPo Guard automatically configures for two cell (2S) and three cell (3S) Lithium Polymer and Lithium Ion batteries. Low voltage warning is indicated by triggering your ballast failsafe.
-LiPo Guard maintains galvanic isolation between the battery connection and the servo connections so noise-causing ground loops are not introduced.
-LiPo Guard can also be used with dynamic diving “pool” subs- Insert the LiPo Guard between the receiver and the ESC and your throttle will be disabled when it’s time for a recharge. (Not recommend for running beyond the reach of a retrieval net.)
The LiPo Guard will be available very soon through Caswell.