How can i get 29.4v Charger from this to charge my Lithium Packs?

Thread Starter


Joined Mar 22, 2017
Hi all...

I previously got a 27.2v 1520w (55amp) charger, its an Ericsson Network power unit (Pic attached) and planned to use on a 24v Lead Acid battery. But started building 18650 Lithium cells battery packs and looking to make a 7s100p setup. Now thinking of how i would charge the packs when they are ready. I would be needing 29v with high amps charger to take each packs to 4.1v but i only have 27v charger. I know installing solar panels would fix this but can not afford that for now.

Is there a way to make use of this 27v charger for the 29v application with the current?




Joined Jan 23, 2018
It is not wise to charge lithium batteries at high current even with adequate power controls. So I suggest a regulated voltage current limited circuit, in the interest of avoiding fires and explosions.