Board Thread:General Nerf discussion/@comment-33092097-20191225203233/@comment-27306930-20191226055832

2S LiPos still have special handling and charging requirements, but they are somewhat easier to integrate into blasters. For instance, you can connect a 2S to a bone stock 6 volt or 9 volt blaster without any modification other than installing an XT-60 battery connector and disabling the thermistor(s). You'll get a boost in power like you get from IMRs, but even better. From an electrical standpoint a 2S pack is essentially the same as two 3.7 volt IMRs, but with a LOT more current and longer run time.

It's best practice to install a voltage alarm, even on a 2S LiPo. If the voltage of the battery drops below 3 volts, the chemistry in the battery changes. If you continue to run it, or try to recharge it, there is a significant possibility it will catch fire. And not just some sparks and smoke, but a legitimate explosion and raging chemical fire.

Luke at Out of Darts has a super inexpensive LiPo voltage alarm that plugs into the balance port. It's a $3.50 investment that can literally save your house from burning down.

So if you're going to exchange the 3S for a 2S, the next question is which blaster are you planning to use it with ?