Batteries

Regulations for ignition-powered models require them to have more than one way to shut off the engine. Critically, one method must work without the radio subsystem (meaning in the event of radio failure, or when the radio is not accessible). Note; if you want to know what's at stake (and have a strong stomach), then review this article of what a prop can do to the human body, but heads up . . . it ain't pretty! Regarding props - heads up! Ignition shutdown without the radio Thus, typically...

These are perfect for 60-150A and briefly, 175A, which is a LOT of current flow. Advantages over EC5 and XT90 include . . .More compactMore currentMore flexible. . .  and putting this into context, and in reverse order;More flexible - you can use two of the same 6S packs for a 12S model just by making a serial connection. Doing the same with any block-type connector (EC5 or XT90, for example) requires buying a serial adapter.In the real world, I use 6S5300 packs for my E-flight F-16...

Since ProModeler batteries come with four connectors;Balance connector, andTwo DuPont connectors (sometimes referred to as JR-connectors), plus aXT30 connector. . . and you use the pair of 3.5A DuPont connectors to deliver 7A of no0-heat power to a recever through a pair of switches for redundancy (DuPont are the little black ones that look like the ones used for servos), plus a yellow 30 amp XT30 . . . - ProModeler packs are made with four connector, a balance, a pair of DuPont, and an XT30...

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...

We call this thing a 4-tap because it literally lets you add another pair of Dupont discharge connectors to one of our batteries (total 4) via the XT30 discharge connector. - XT30 female close up reveals male pins - but - it's the housing that determines gender So why add an PEXD (XT30-DupontX2 power expander) to a ProModeler B2S-series LiIon battery pack in the first place? These packs range in capacity from 850-6000mAh and are a handy way to power something other than a receiver and servos -...

This power adapter is what you need to power a HV steering servo separately from the 6V radio system without burning up the receiver/ESC. - This adapter gives the servo 10A of HV while the receiver runs on a BEC Background: The stock TRAXXAS radio system operates on 6V. The 6V-receiver is backfed through the throttle lead coming from the ESC (through what's called a BEC-circuit). BEC stands for battery eliminator circuit and ESC means electronic speed control, or throttle (for the propulsion...

The power adapter makes pulling power from a 2S pack's JST-HX balance port and converting to an XT30, easy.  This mates perfectly to a JST-brand XH connector (used for the balance connection of a battery pack). There are other types of balance connectors, battery folks use whatever flavor suits them. Thunder Power, for example uses one, Hyperion uses another, Traxxas uses another, etc. This one is for the JST XH connector. They exist on batteries to make it easy to bleed off voltage from...

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...

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...

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 B4S8500 is a dedicated pack consisting of 4 LiIon cells arranged in series in a flat configuration (four cells arranged side-by-side). Outputting 15VDC (nominal), this pack is intended for direct connection to midi and mega class servos. Representing a lot of juice in a compact package, this pack is equipped with an XT30 charge/discharge connector (rated at 30A). Plus, an HX-type balance connector for the charger (for monitoring SOC, or state of charge). ...

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 B4S2500 is a dedicated pack consisting of 4 LiIon cells arranged in series in a flat configuration (four cells arranged side-by-side). Outputting 15VDC (nominal), this pack is intended for direct connection to midi and mega class servos. Representing a lot of juice in a compact package, this pack is equipped with an XT30 charge/discharge connector (rated at 30A). Plus, an HX-type balance connector for the charger (for monitoring SOC, or state of charge). ...

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...

What's the least reliable component in the avionics system of a model airplane, the receiver? Servos? Battery? Turns out the least reliable is the switch. Next least reliable are servos (at a rate magnified by having 4-8 of them in a model so it looks worse than it is if one takes a crap). They're all followed by the receiver. Most reliable of all? The battery pack. Why? It's because physics dictate the ions in a pack will flow from cathode to anode as reliably as an anvil will fall when...

What's the least reliable component in the avionics system of a model airplane, the receiver? Servos? Battery? Turns out the least reliable is the switch. Next least reliable are servos (at a rate magnified by having 4-8 of them in a model so it looks worse than it is if one takes a crap). They're all followed by the receiver. Most reliable of all? The battery pack. Why? It's because physics dictate the ions in a pack will flow from cathode to anode as reliably as an anvil will fall when...

What's the least reliable component in the avionics system of a model airplane, the receiver? Servos? Battery? Turns out the least reliable is the switch. Next least reliable are servos (at a rate magnified by having 4-8 of them in a model so it looks worse than it is if one takes a crap). They're all followed by the receiver. Most reliable of all? The battery pack. Why? It's because physics dictate the ions in a pack will flow from cathode to anode as reliably as an anvil will fall when...

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...