The Offshore Voyaging Reference Site

Great Source: How Lithium Batteries Charge

I have been deep into researching lithium batteries, and particularly how they charge, while writing new buyer’s guide chapters for our Electrical Systems Online Book.

One of the best sources I have read is a post by Eric Bretscher, over at Nordkyn Design.

Before you go read it, a few thoughts:

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Todd Edger

I think Eric is spot on. Victron smart shunts allow their smart solar and DC to DC chargers to end charging when reaching a specific tail current. I believe 3.45 volts per cell gives the fastest charging without driving cell imbalance. If you need to be above or below the knees in the charge curve you need a bigger bank.