Buying guides
SCX24 batteries, explained.
Small packs, big traps — size, plug, and shipping decide everything.
"SCX24 battery" is searched at about twice the level of general SCX24 upgrade searches — measured on Google Trends — because a battery looks like the simplest purchase on the truck and quietly is not. The pack has to match on voltage (2S stock, 3S only on rated brushless ESCs), on connector (PH2.0, also sold as JST-PH — not Molex, not JST-RCY), and on physical size, and then shipping often costs more than the pack itself. This guide walks the stock-size replacements, the runtime route, and the 3S option with every price pulled from our live catalog as a verified total landed price including shipping. For charging and storage care, see our LiPo charging guide; for the electronics a 3S pack needs, see the SCX24 ESC guide.
The three checks before you order
First, voltage: the stock SCX24 ESC/receiver board is a 2S unit, full stop. Second, the plug: stock is PH2.0. HobbyKing sells the same plug family as JST-PH, which is fine; the Molex plug on FMS FCX packs and the JST-RCY plug on other micro packs are different connectors that will not plug in, however good the headline price looks — the CNHL MiniStar 350mAh at $3.49 is a Molex-plug FMS pack, not an SCX24 pack. Third, size: the stock-size class is roughly 350mAh, and the Spektrum SCX24 pack's 56x28x13mm footprint is the reference. Bigger capacities are longer or thicker, and on a truck this small a pack that does not fit the tray is a paperweight, not an upgrade.
Stock-size 2S packs — the direct replacements
These are the packs that drop into a stock or lightly modified SCX24 and plug straight into the factory electronics. Buy them in pairs or triples: runtime per pack is modest, and rotating spares is how SCX24 owners actually run all afternoon.
Turnigy nano-tech 300mAh 2S 35C LiPo Pack with JST-PH Connector — $11.72 landed
The cheapest landed SCX24 pack in the catalog: $3.99 plus $7.73 USPS shipping from HobbyKing's US warehouse is $11.72 total. The JST-PH plug is the micro-crawler standard the SCX24 uses, and 300mAh at 35C is right in the stock class. Shipping being double the item price is exactly why you order two or three at once.
Spektrum 7.4V 350mAh 2S 30C LiPo Battery: SCX24 PH 2.0 (SPMX3502S30) — $13.48 landed
The name-brand stock replacement: a 350mAh 2S 30C soft-case pack with the PH 2.0 plug and JST-XH balance lead, sized for the SCX24 at 56x28x13mm. On Horizon's Pre-Black Friday sale at $6.49 (down from $8.99, sale ends Nov 16) plus $6.99 shipping — $13.48 landed, and Horizon shipping is free over $99 if the pack rides along with a bigger order. A compatible charger and a charging bag are required, as with any LiPo.
Turnigy nano-tech 350mAh 2S 25-40C LiPo Battery for 1/18 & 1/24 RC Crawlers — $13.72 landed
The full stock capacity at HobbyKing money: $5.99 plus $7.73 shipping is $13.72 landed from the US warehouse. It is made for 1/18 and 1/24 crawlers and its JST-PH plug matches micro crawler battery trays, SCX24 included. Pick this one over the 300mAh pack when you want the extra runtime and the 50mAh costs you nothing in fit.
Browse the full shelf on our batteries page.
More runtime — the bigger-pack route, honestly labeled
An 850mAh pack holds well over twice the energy of the stock 350mAh class — but it is a physically bigger pack, and whether it fits depends on your chassis, body, and tray setup. Treat this as the extended-runtime option for builds with room, and check dimensions before ordering rather than assuming a stock tray will swallow it.
2-Pack Ovonic 2S 850mAh 7.4V 35C LiPo Battery with PH2.0 Plugs & USB Charger for Mini RC — $23.03 landed
Two 850mAh 2S packs with PH2.0 plugs plus a USB charger, $23.03 landed with free shipping from Ovonic — about $11.52 a pack with the charger thrown in. On a build with the room for them, this is the best runtime-per-dollar in the guide; on a bone-stock tray, measure first. Ovonic auto-applies 12% off sitewide at checkout on its own store, so the cart total can come in under the listed price.
Billet Machined Battery Mount for Axial 1/24 SCX24 — $11.01 landed
The fitment helper: Integy's billet battery mount for the SCX24, $5.06 plus $5.95 shipping — $11.01 landed (free shipping on orders $39+; the black finish is a $7.36 option on the same listing). A proper mount is what makes a non-stock pack placement secure instead of Velcro-and-hope, and it tidies the stock pack's seating too.
3S — brushless builds only
3S (11.1V) buys wheel speed and punch that a slow-crawl 2S setup cannot — and it will damage electronics that are not rated for it. The stock SCX24 board is not. This route only opens once you run a 2-3S-rated brushless ESC like the MEUS ME32 ($48.98 landed) or INJORA Roverin OR30 covered in our SCX24 ESC guide, and one more check applies to the pack below: its plug is a plain JST connector, not JST-PH, so confirm your ESC's battery lead or budget for an adapter before ordering.
Turnigy nano-tech 300mAh 3S 50C LiPo Pack with JST Connector — $13.72 landed
The cheap 3S taste: $5.99 plus $7.73 USPS shipping from HobbyKing's US warehouse is $13.72 landed. 300mAh keeps the weight where a micro crawler wants it, and 50C is generous headroom for a small brushless system. Small custom builds is exactly what HobbyKing sells it for — with the ESC-rating and connector checks above, it is the lowest-cost way into 3S on this platform.
INJORA XT30 Battery Adapter Cable — JST PH2.0 — $6.98 landed
The connector bridge: a short adapter lead from XT30 to JST PH2.0 (one of five variants on the listing, including JST-RCY, TRX-4M, T-Style, and EC3), $2.99 plus $3.99 shipping — $6.98 landed for a single, or $13.98 landed for the 5-cable set at $9.99. If your brushless build standardized on XT30, this is how your PH2.0 packs stay in the rotation.
Charging — a real balance charger beats the USB puck
Every pack above balance-charges through its JST-XH lead, and a proper balance charger charges faster, balances the cells, and can put a pack at storage voltage — the three things that decide how long a tiny LiPo lives. Our LiPo charging guide covers rates and storage in full; these are the two catalog chargers that fit an SCX24 bench.
SUPULSE B3P AC LiPo Balance Charger (2S/3S, 25W) — $19.98 landed
The budget balance charger: 25W, 2000mA, and it covers both 2S and 3S packs, so it grows with you if you take the brushless route. $15.99 plus $3.99 standard shipping at Banggood is $19.98 landed.
EcoPower Electron Li32 AC LiPo Balance Charger (2-3S/2A/25W) — $26.99
The hobby-shop step up: EcoPower's 25W AC balance charger for 2-3S packs, in stock online at AMain Hobbies at $26.99 (shipping calculated at checkout). Same charging class as the SUPULSE with EcoPower's support behind it — the pick if you would rather buy your charger from a crawler retailer.
See every option on our chargers page, and 1/10-scale packs in the best LiPo for crawler guide.
The short version
Cheapest spare — $11.72 landed
The Turnigy nano-tech 300mAh 2S at $11.72 landed is the lowest verified total for a pack that actually plugs into an SCX24. Order more than one; the shipping math demands it.
Buy this one — $13.48 landed
The Spektrum 350mAh SCX24 pack at $13.48 landed is the exact stock-size, stock-plug replacement from the brand behind the truck's own electronics — on sale at $6.49 until Nov 16. If you are stocking up while Horizon shipping is already paid on a bigger order, it gets cheaper still.
Brushless route — $13.72 landed, with checks
Already running a 2-3S brushless ESC? The Turnigy 300mAh 3S at $13.72 landed is the low-cost way to unlock 3S — after you confirm the ESC rating and the JST connector, and never on the stock board.
SCX24 Battery FAQ
What battery does the SCX24 use?
A small 2S (7.4V) LiPo in the 300-350mAh class with a PH2.0 connector — also sold as JST-PH — and a JST-XH balance lead. The Spektrum 350mAh 2S 30C (SPMX3502S30, $13.48 landed) is sized exactly for the SCX24 at 56x28x13mm. Match voltage, plug, and physical size before ordering.
Can I run a 3S battery in my SCX24?
Only with a brushless ESC rated for 3S — never on the stock ESC/receiver board, which is a 2S unit. The MEUS ME32 ($48.98 landed) and INJORA Roverin OR30 are rated 2-3S, and the Turnigy nano-tech 300mAh 3S ($13.72 landed) is the cheap pack for that route. 3S on 2S-only electronics can kill the board.
How long does an SCX24 battery last per charge?
Roughly 20-40 minutes of slow crawling from a stock-size 300-350mAh 2S pack, depending on motor, terrain, and time spent bound up on climbs. Most owners carry two or three spares and rotate them rather than chasing one huge pack.
Are PH2.0 and JST-PH the same connector?
For SCX24 shopping, yes — Spektrum and Axial list the stock plug as PH2.0 and HobbyKing sells the same plug family as JST-PH. The Molex plug on FMS FCX packs and the JST-RCY plug on other micro packs are different and will not plug in.
Why does shipping cost more than the battery?
Micro packs are cheap and light, so shipping dominates: the $3.99 Turnigy 300mAh is $11.72 landed and the $6.49 Spektrum is $13.48 landed. Buy spares in one order, or reach a free-shipping line — Horizon ships free over $99 and INJORA over $60.
A quick note on links
Some links on this page are affiliate links. If you buy through them, the retailer may pay us a commission at no extra cost to you — it keeps the lights on and the deal verification going. Prices were verified from our live catalog on Nov 9, 2026; the live deal pages always show the current verified total. RC Crawlers Seek currently tracks 5,819 hand-verified deals.