NiMH Transmitter Packs



Greetings! You've come to the right place for a top-quality pack for your Legacy 72Mhz & 2,4GHz Transmitters. Our NiMH upgrade packs come in all shapes, set up with the right connector or configuration for your older serviceable & trusted radio gear. 
Got a Futaba 9Z or JR 10X /12X 'cassette' type pack? We've got the max runtime reload you need, and we make getting it installed easy. Just scroll down the page for a step-by-step photo tutorial on installation. Before ordering or emailing, PLEASE get your transmitter out, open the battery box and eyeball your pack and connector configuration.. cues like pack shape, connector color and type will help immensely in selecting the right shape and connector type for your Radio. NOTE: Spektrum (aka 'Spectrum') Radio Owners!! YES, we have packs for Spektrum Radios that were originally equipped with NiCAD or NiMH packs! Your Tx pack connector type is is usually 'JR White'. Your Rx pack type connector is 'JR/Hitec/ AirtZ'.
Transmitter Packs and Reloads .
2000ma 9.6v Eneloop NiMH AA Sized' Tx Pack This is the best NiMH replacement pack available for computer Transmitters. This exceptional NiMH cell has been optimized for charge retention, outperforming all other NiMH AA types in retaining a charge between charge sessions. With 2000ma capacity, they offer longer runtimes than the venerable 1650 series NiMH Tx packs and significantly outperform the 2700's in charge retention, durability and duty cycle lifetimes. If your looking for the best value for your dollar in terms of overall life expectancy and durability, these packs will deliver for you. These Eneloop 2000 Series Tx upgrade packs will give approx 5 hours + runtime in most Transmitters and are robust enough to tolerate fast charge at the field with an appropriate NiMH peak detection capable field charger. Eneloop cells are pre-formed and ship @ 70% charged, so getting these Tx packs into service is fast and easy. Slow charging can be accomplished with your standard system wall wart charger with extended charge time, just stop the charge when the pack warms up!
8 Cell Flat, Square or Stick9.6v Tx Sq w/JR White Conn Shown
$49.95
2000ma 9.6v Eneloop NiMH ' AA Sized' Cassette Reload Tx Pack This is the best NiMH replacement pack available for Futaba 9Z & JR 10x & 12x Cassette reloading. Simple to install, they require about 15 minutes to set up in your cassette. For a quick synopsis of the install procedure and a video of the process scroll down this page towards the bottom of this page. Eneloop cells are pre-formed and ship @ 70% charged, so getting these Tx packs into service is fast and easy. Slow charging can be accomplished with your standard system wall wart charger with extended charge time, just stop the charge when the pack warms up! Note for JR 12X owners.. your wall wart is NOT a peak charger and it's output rates can damage these packs if left unattended! Stop the charge when the pack warms up!
9.6v Tx Sq Cassette Reload pack w/ solder tabs
$49.95
2000ma 4.8v Eneloop NiMH ' AA Sized' Specktrum DX 8 Tx Pack The same physical dimensions as the original 2000ma NiMH OEM pack that came with your radio system. No mod's required to the battery bay on the radio, this is a direct fit, drop in eneloop replacement pack. Eneloop packs come pre-formed and at 70% of charge so you can put them in service right out of the bag. Charge retention is superior to any other AA NiMH type. Compatible with the charger in your radio, however, as with all AA Tx packs, use caution; don't overcharge. When the pack warms up, stop the charge! The pack comes shrink wrapped and complete with the correct white Spektrum/JR Tx connector for the DX8 Transmitter.
4.8v DX-8 Pack (shown with Rx conn, comes w/JR White Tx conn)
$28.95
2100ma 6.0v 2100ma 4/5A NiMH 6v Futaba Tx pack for Futaba 14SG, 8J & 10J Transmitter The same physical dimensions as the original NiMH OEM pack that came with your radio system.This long run time NiMH pack for your Futaba 14SG, 4PKS, 8J & 10J transmitters. Designed as a drop in replacement/upgrade for the 5 cell OEM 1500-1700ma pack and fits the Transmitters battery bay. Comes w/ Futaba connector. Easily supported by your OEM charger & can be fast charged at the field.
$36.95
6.0v Futaba 14SG, 8J, !0j, etc Tx Pack
2000ma 7.2v 'AA' NiMH 6 cell 7.2v Eneloop 'Triangle Stick' Tx Replacement packs for FR Sky Taranis and Hitec Eclipse 7 PRO 2.4 This pack is set up in the correct 'three sticks of two' AA NiMH cells stacked in a triangle shape' to fit the Taranis 2.4 transmitter & the Hitec Eclipse 7 PRO 2.4. Comes finished in blue heatshrink and available with your choice of bare 22g leads, Hitec White or Taranis JST-XH connector. (note: NOT for Standard Eclipse Tx's !!) - IMPORTANT! You MUST use a NiMH (not lithium) charge routine/program to support this pack!
7.2v 'Triangle Stick' Tx Pack
$42.95
2000ma 7.2v 'AA' Eneloop NiMH 6 cell 7.2v '2 stick x 3 wide flat' Tx Replacement pack for Hitec Aurora Tx ONLY. The same physical dimensions as the original NiMH OEM pack that came with your Aurora radio system. For formation and slow charge routines you can use the charger that came with the radio system. This drop in replacement is built in the unusual 7.2v 2 cell high stick by three wide flat shape used by Hitec in the Aurora Transmitter, and comes with the little white hitec specific Tx pack plug.
7.2v '2 High x 3 Wide' Tx Pack
$42.95
2000ma 7.2v 'AA' Eneloop NiMH 6 cell 7.2v '2 stick x 3 wide flat' Tx Replacement pack for Airtronics SD-10G Tx ONLY. The same physical dimensions as the original NiMH OEM pack that came with your Airtronics SD-10G radio system. For formation and slow charge routines you can use the charger that came with the radio system. This drop in replacement is built in the unusual 7.2v 2 cell high stick by three wide flat shape used by Airtronics in the SD-10G Radio, and comes with the Airtronics/Z connector.
7.2v '2 High x 3 Wide' Tx Pack
$42.95
2000ma 7.2v 'AA' sized Eneloop NiMH 6 cell 7.2v 'Shotgun Stick' Tx Replacement packs for EVO and similar Tx's. The same physical dimensions as the original 1500ma NiMH OEM pack that came with your radio system. For formation and slow charge routines you can use the charger that came with the radio system. This drop in replacement is built in the common 3 x 2 stick shape used by most European radio MFG's, and comes with 8" red and black 22g leads to make it easy to splice on your connector.
7.2v 'Shotgun Stick Shape
$40.95
2100ma 7.2v 4/5 'A' sized FDK/Twicell NiMH 6 cell 7.2v 'Shotgun Stick' Tx Replacement packs for Futaba 8 & 12FG 2.4Ghz Tx ONLY The same physical dimensions as the original 1700ma NiMH OEM pack that came with your radio system. This is a low impedance pack and can tolerate fast charging. For formation and slow charge routines you can use the charger that came with the radio system. This is a drop in replacement that actually fits a bit better than the stock pack and offers a bit more run time, too.
7.2v 'Shotgun Stick Shape
$42.95
Transmitter Pack Accessories .
'Old School' type System Charge Cord Set; Bananna Plugs Here's an 'old school' complete Transmitter pack and Receiver pack support cord system, allows complete coverage of most 72Mhz & early 2.4GHz radio system connector types, including HiTec, JR, Futaba and AirtZ Type Rx packs and Transmitters including early Specktrum sets. Two cords, one for the Tx with a universtal 'star' head for the major Tx brands, and a Univ Rx pack cord for the major radio system types.
M-2706 Standard System Cord Set, Univ
$12.95

'White' Transmitter Pack Mating plug, JR / Hitec / etc Here's a lil lifesaver.. having trouble finding a plug that mates that weird lil black or white plug on your Spektrum, JR, Hitec or Futaba Transmitter pack? Can't cycle test or fast charge through the radio system's charge port?? Well, here's what you need! This will mate with any Tx system plug by matching up the prong with the red wire on the charge cord to the the red wire on your pack connector. Comes ready to use with banana plugs.
$9.95
Transmitter Cassette Reload Guide .

 First, remove the 4 screws that hold the cassette together. Here you can see the cassette with it’s screws ‘loose’ but not removed. Take ‘em ALL the way out and put ‘em someplace where you are not likely to bump ‘em off the table and into the carpet.. losing one of these is a pain in the butt!

 Now you get to take the cassette top off.. note the two alignment tab slots on the cassette bottom and the mating tabs on the top.. spread the cassette slightly there, then lift the top away. When it’s open, everything looks like this.
Next, lift the pack out of the cassette bottom. The little circuit board just sits in a slot at the end of the cassette bottom, and it comes right out with the pack. On Futaba cassettes there’s often a double stick tape strip in the bottom of the case, use care prying it out; don’t crack the case and fer pete’s sake don’t short the pack with your screwdriver or your workshop will look like a ‘Voyage to the Bottom of the Sea’ re-run!
The hard parts over.. now the soldering iron comes into play. Unsolder the wires from the little circuit board from the tabs on the old pack. Note that Red wire is always positive, even in JR cassettes. This, folks; is important so pay attention… you don’t wanna make smoke. Be sure you carefully unsolder the wires where they connect to the BATTERY, not the little circuit board.
The hard parts over.. now the soldering iron comes into play. Unsolder the wires from the little circuit board from the tabs on the old pack. Note that Red wire is always positive, even in JR cassettes. This, folks; is important so pay attention… you don’t wanna make smoke. Be sure you carefully unsolder the wires where they connect to the BATTERY, not the little circuit board.
Now that the old pack is out, you can take a breath, admire your work and prepare to insert the new pack. Depending on who’s pack you are going to install, you’ll need to get it ready by identifying which terminal on the new pack is the positive one and marking it. Next; carefully remove the shrink jacket from the new pack and then finish prepping it by putting a bit of solder on the new packs solder tabs (if some is not already on them).
Now, grab up your little circuit board and re-solder its wires to the tabs on your new pack.. and again; pay VERY close attention to the polarity, or your new name will be 'Sparky'. Often, replacement battery packs have their positive tab in a different ‘clock’ position than the old one. If in doubt, check the pack with a meter, but fer cripes sake DO NOT MESS THIS UP.. get the red wire on the positive tab!
Whew.. all down hill from here! Your sure you’ve soldered it up correctly (still not too late to check!!) and it’s time to drop the new pack into the cassette. Line up the circuit board in it’s slot and everything just tracks right into place. Pay attention to where the wires are... don't let them get jammed between the plug socket and the solder tabs on the pack.
Well there it is, done deal. All that’s left now is getting the cassette back together. Line up the tabs on the top half with the slots on the bottom first, then close the cassette like you close a book. Watch the white nylon plug end of the circuit board, make sure it lines up nicely with the slot in the cassette top. When everything is right it just ‘clicks’ together. Don’t force it, it’ll all go together fine if yah hold yer tongue just right! *click* Wallah!! Now you can run the screws home; set up your charger and get the topping charge going.
Remember.. eneloop reload packs ship out with @ 75% charge in them, they do NOT require formatting. If peak charging, set the charge rate at EXACTLY 1 amp, NO HIGHER... and NO LOWER. Monitor the charge, if the charger 'misses' peak (or you are using a wall wart) the pack will become warm at the end of the charge... to avoid damaging the pack; ALWAYS.. SHUT THE CHARGE DOWN WHEN THE PACK WARMS UP! ( and Congratulations on your successful surgery!!)
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