Receiver

This is a stand-alone BEC. It's rated at 14A and because the actual output depends on the input voltage (and temperature), heads up before deciding to get it because maybe you get 14-15A, maybe you don't - depends on what you feed it). Our best advice is read the specs and make sure it'll do what you want because after you buy it, you're going to Castle for help, not us! ProTip: there are two major differences between a battery and a BEC for powering the control subsystem of your model. 1st, a...

This is a stand-alone BEC. It's rated at 15A and because the actual output depends on the input voltage (and temperature), heads up before deciding to get it because maybe you get 14-15A, maybe you don't - depends. Our best advice is read the specs and make sure it'll do what you want because after you buy it, you're going to Castle for help, not us! ProTip: there are two major differences between a battery and a BEC for powering the control subsystem of your model. 1st, a battery will for...

Measuring battery capacity isn't rocket science. We offer this one, which is basically the same as the other two versions for those who recognize what a case that's been CNC-machined of 6061-T6 aircraft aluminum brings to the game. ProTip: connect a 2-wire JR-style lead for NiCd/NiMH packs (which typically don't have a balance connector for measuring individual cells) at the 2-pin port. With regard to lithium-type packs, e.g. LiPo, LiIon, LiFe, and super duty LiFePO4 (A123) because they have a...

Note; the balance extension is expressly made for 6S packs - but - because it's so easy to connect, you can use it with a 2S pack, too. Reason to only offer the one extension is because I was loathe to have multiple SKUs just for 2S, 3S, 4S, and 5S packs when it's so very easy to use this one cord with all the variations. If you insists, we have the snap connector covers for the other configurations if you want to roll your own using this extension as the foundation. ...

This B2S650 is a dedicated pack consisting of 2 LiIon cells arranged in a series configuration (two cells arranged side-by-side). Outputting more than 8V fresh off charge (7.4VDC nominal), this pack is intended for direct connection to receivers. Representing a lot of juice in a compact package, this pack is equipped with two JST (JR-type) connectors rated at 3.5A each (combined they deliver 10A) along with an XT30 charge/discharge connector (rated at 30A). Plus, an HX-type balance connector...

This B2S850 is a dedicated pack consisting of 2 LiIon cells arranged in a series configuration (two cells arranged side-by-side). Outputting 7.4VDC (nominal), this pack is intended for direct connection to receivers. Representing a lot of juice in a compact package, this pack is equipped with two JST (JR-type) connectors rated at 3.5A each (combined they deliver 10A) along with an XT30 charge/discharge connector (rated at 30A). Plus, an HX-type balance connector for the charger (for monitoring...

This A123 chemistry B2S1800 is a dedicated pack consisting of 2 LiFePO4 cells arranged in a series configuration (two cells arranged side-by-side and electrically positive to negative so the voltages add up). Outputting more than 7.1V fresh off charge (6.6VDC nominal), this pack is intended for direct connection to receivers. Representing a lot of juice in a compact package, this pack is equipped with two JST (JR-type) connectors rated at 3.5A each (combined they deliver 7A) along with an XT30...

This B2S2500 is a dedicated pack consisting of 2 LiIon cells arranged in a series configuration (two cells arranged side-by-side). Outputting well over 8V fresh off charge, this pack is intended for direct connection to receivers. Representing a lot of juice in a compact package, this pack is equipped with two JST (JR-type) connectors rated at 3.5A each (so combined they deliver 7A) along with an XT30 charge/discharge connector (rated at 30A). Plus, an HX-type balance connector for the charger...

This A123 chemistry B2S4000 is a dedicated pack consisting of 2 cells arranged in a series configuration (two cells arranged side-by-side). Outputting more than 7.1V (6.6V nominal), this pack is intended for direct connection to receivers. Representing a lot of juice in a compact package, this pack is equipped with two JST (JR-type) connectors rated at 3.5A each (combined they deliver 7A) along with an XT30 charge/discharge connector (rated at 30A). Plus, an HX-type balance connector for the...

This B2S5000 is a dedicated pack consisting of 2 LiIon cells arranged in a series configuration (two cells arranged side-by-side). Outputting 7.4VDC (nominal), this pack is intended for direct connection to receivers. Representing a lot of juice in a compact package, this pack is equipped with two JST (JR-type) connectors rated at 3.5A each (combined they deliver 7A) along with an XT30 charge/discharge connector (rated at 30A). Plus, an HX-type balance connector for the charger (for monitoring...

This A123 chemistry B2S6000 is a dedicated pack consisting of 2 LiFePO4 cells arranged in a series configuration (two cells arranged side-by-side). Outputting more than 7.1V (6.6V nominal), this pack is intended for direct connection to receivers. Representing a lot of juice in a compact package, this pack is equipped with two JST (JR-type) connectors rated at 3.5A each (combined they deliver 7A) along with an XT30 charge/discharge connector (rated at 30A). Plus, an HX-type balance connector...