At long last, now you can get raw A123 cells without troubling through the ever inflating online drill pack market and not being certain your getting genuine A123 Cells (many of them no longer use the genuine article). Also, it has been reported that the factory warranty return cells are disposed of in that market. Our inventory is exclusively brand new factory fresh cells, no harvested/warranty return seconds. These cells are much easier to assemble into packs than harvested cells. Although many battery beginners offer questionable advice on these cells, we strongly urge use of a balance harness and balancer. All our packs come ready to use with the worlds most common balance connector. The XH plug readily fits the Astro Blinky. Our Favorite A123 balancer. CellPro and Thunder Power balancer owners need the "E-Flite adapter" in order to service our packs and a wide range of others.
We get way too many phone calls checking to see if our cells are genuine A123. WE SELL ONLY GENUINE A123/LITHIUMWERKS CELLS/PACKS. We do not nor have we ever stocked any generics of this brand.
CellPro charger owners: You own a nice unit. We run into an amazing number of customers who purchase a CellPro charger but fail to buy the adapters which allow it to be connected to a wide variety of packs. Of what value is your investment if you fail to buy the plugs to connect it to battery packs? NOTHING comes with the FMA plug except FMA packs. You will need the XH or "E-Flite" adapter in order to interface with 70% of all packs made. Our A123 packs custom built in house come with an XH plug, you will need the adapter in order to connect your charger to our and most any other pack. Would you purchaces a boat but not buy life jackets? Would you buy a trailer for your airplanes but not a hitch? BUY THE ADAPTERS.
If you want packs with Cell Pro balance connectors you'll need to send those harnesses to us with your order. We do not stock this plug.
Checking A123 RX Packs For Recharge Point Check this posting for information about checking your RX packs at the field. A look around my Radical RC Workbench site for lots of helpful information, technical articals, how-to, comentary and etc... All packs are tested before we ship to ensure you receive it in good working order, pre-approved returns are considered non-warranty.
Custom designed A123/LithiumWerks battery to fit your Sullivan S642 battery box.
4 A123/LithiumWerks cells nominal voltage: 12.8V. More punch than a 12V lead acid or 10 cell NiCad battery. 5 A123/LithiumWerks cells nominal voltage: 16.0V. Equivalent to 13 cell NiCad/NiMH. 6 A123/LithiumWerks cells nominal voltage: 19.2V. Equivalent to 16 cell NiCad/NiMH. 8 A123/LithiumWerks cells nominal voltage: 25.6V. Better power than two 12V Lead Acid batteries in series.
Our pack comes to you ready to plug into the Sullivan battery monitor board and is designed to fit right into your S642 case without any modifications. Refer to Sullivan for correct blade and polarity hookup.*
We suggest our custom charge cord for directly charging the battery through the XH balance connector. Simply pop open the yellow door on the side of the holder and connect to the balance harness. The opposite end of our cord connects to both the balance input of your charger as well as the standard 4mm banana charge output port. Limit charge current to 2 amps through the balance harness. Only charge with a charger in A123/LithiumWerks balance charge mode set to proper cell count and 2 amps maximum.
Special Notes for 25.6V battery: Use the 4S charge cord. The battery will have two 4S balance connector outputs. Charge through each of the two ports individually with charger set for 4S (12.8V) LIFE battery. NEVER charge them at the same time by using a Y harness or any two charge ports utilizing the same power source. If you do, fire or injury will result. (The SMOKE and BLUE LIGHT light will escape likely burning the hands that are holding the connectors, possibly ruin your battery and destroy your once beautiful battery box. Aw shucks!) Charging each 1/2 of the 8 cell pack separately and consecutively is required because most people do not own a charger capable of addressing an 8S battery pack. If you own a charger capable of 8S in LIFE mode, we can special build the pack and charge cord for you.
*Lithium batteries connected to electronic circuits must be charged periodically to prevent the circuit from running the pack dry. A Lithium pack ran down to zero cannot be recovered. The Sullivan battery box is presumed to be designed not to ruin a battery. However, we will not provide a warranty for any battery run to zero by this or any other device. Don't ask, don't tell us about it. Test and charge your battery periodically at your own discretion.
Yes, there is a small premium over our normal A123/LithiumWerks pack builds. Because of the restricted space, packs to fit the Sullivan battery box require extra time to build.
*Special Note: The very early version of this battery box could run a battery down if the voltage programming button had never been depressed. This was corrected in late 2015. It's a good idea to go ahead and set the voltage even if you won't be referencing the voltage. Sullivan is a great company and this is the finest battery box available in my view.
The Hobbico Power Core is a nice battery holder, the only problem is it comes with a small weakish lead acid battery inside. The voltage depression of this small battery is very large resulting in a weak performance from your starter. Running a 4S (2500mAh cells) A123LithiumWerks will just about double the torque you have now. The nominal voltage of a 4S LIFE pack is 13.2v. And, It's voltage won't depress nearly as much when your squeeze the trigger delivering more torque than ever before.
Our pack is designed to fit right into your Power Core case without any modifications. Although you could use the provided charge port in the power core, it is recommended that you use a Deans Ultra plug in the wire from the starter to the A123/LithiumWerks Power Core battery. This way you can unplug it and charge the pack directly. Your new battery may now be charged up to 10 amps if you please. The stock lead acid charger should be discarded. Only charge with a charger in LiFe charge mode.
Note, you must install a connector on your starter wire up to the task. Suggested connectors are listed below. If you order a "Set for Starter Wire", you'll get a complete set of plugs. The one you don't put on the starter wire can go on the battery if you wish to install it yourself. If so, select "None" for Output Connector. If you select an output connector, we'll put it on the pack for you ready to go. You'll still need to install a plug on your starter wire to match.
SKU Number: RRCPCINSERT
A123 LiFePO4 Batteries, Cells & Packs
A123 LiFePO4 batteries and lithium cells and packs for RC power, receiver and ignition systems. A123-style LiFePO4 (LiFe) chemistry is prized for its flat voltage, long cycle life and safe, rugged discharge, which is why it is a favorite for receiver packs, gas-engine ignitions and transmitters where reliability matters more than shaving a few grams.
Here you will find genuine A123 / ANR26650 LiFePO4 cells, high-power MOLICEL 18650 Li-ion cells, LiPo cells, and the newer Sodium Na-ion 18650 cells — available as single cells and in ready-to-use 2S and 4S packs. Voltages run from single-cell 3.1–3.3V up to 12.4V multi-cell packs, and capacities span from compact 1300mAh cells to higher-mAh options, so you can build or buy the exact pack your model needs.
Whether you are assembling a custom receiver pack, upgrading an ignition battery or replacing tired cells, these A123, LiFe, LiPo, Li-ion and Sodium-ion options cover it — pair them with the right charger and connectors for a dependable power system. Browse the full selection of cells and packs and order online.
A123 LiFePO4 Cells and Packs
This category spans several lithium and related battery chemistries used in radio-control and hobby electronics, including A123-style LiFePO4, lithium, and sodium-ion cells assembled as single cells and multi-cell packs.
Sodium Na-Ion Cells and Packs
Among the current listings are Sodium Na-Ion 18650 cells offered as single 3.1V cells, 7.2V two-cell packs, and 12.4V four-cell packs, in more than one capacity rating. This format lets you choose a single cell for a compact build or a ready-assembled pack when you need a set voltage, and stepping from a single cell to a four-cell pack roughly quadruples the nominal voltage while keeping the same 18650 cell size.
Cells and packs in this group suit builders comfortable matching chemistry, voltage, and capacity to their charger and application. Because different chemistries have their own charging profiles, it is worth confirming that your charger supports the type you select before putting a pack into service.
Review the cell and pack listings above to find the configuration that fits your project.
 "A123/LithiumWerks LIFE Insert for Sullivan S642 Battery Box")
 "A123/LithiumWerks 4S 2500mAh LIFE Insert for Hobbico Power Core MKII")
