2st one lasted 8+years. This new series is about the same with a few upgrades. Sound is fantastic light are a new feature that is soothing. Love the new speaker , radio and new feature beer opener and double drink holder.
After replacing my old battery with this one we are extremely happy with this purchase. Battery life lasts substantially longer than the stock battery in our speaker.
Perfect replacement for original lead-acid battery which most people reported was shot soon after purchase. I loved my speaker when I first received it, it works like brand new again, and the lithium battery should last far longer.
These speakers are amazing. Great sound and easy to connect. The batteries lasted the entire holiday weekend on one charge.