Lipo is ok not my fav prefer duel/triple 18650. I got out one of my DNA 200's last not and found the lipo over discharged, recovery hasn't worked so had to order one in. They are quite easy to install but when you need a new lipo just make sure you get the correct connection, Luckily i spotted mine was a Deans connection, which has ended up costing me an extra £3 the deans is like square, oblong with flat pins inside, the other connection is XT60 which is 2 circular connections You just plug the connection in and the balance charge connection in and put the mod back together.