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7.4V 3000mAh 2S Li-ion Battery SM-2P USB RC Car
• Specifications (per pack): 70 × 38 × 18mm; 93g; 3000mAh; 7.4V (2S Li-ion); SM-2P plug; soft PVC wrap.
• 2-Pack with USB Charging: 2× battery + 2× USB-A charging cable. Plug into any 5V USB port (phone adapter, laptop, power bank, car USB) — no separate charger needed. Full charge: ~2–3 hrs. Use one, charge the other.
• Designed for Kids' RC Cars & Toys (Ages 6–14): Replacement battery for low-speed toy-grade RC trucks, crawlers, and boats. Compatible with WPL C24 / MN D90 / MN 90 RC crawler, H101 RC car / truck / boat, and any 2S 7.4V toy RC with SM-2P bay. This is NOT for high-performance or racing use.
⚠️ Before Ordering — Verify 3 Things:
• 1) Your device's original battery is 7.4V (2S), not 6V or 11.1V.
• 2) The battery bay fits 70 × 38 × 18mm (including SM-2P plug clearance).
• 3) The battery plug is SM-2P (two-pin flat). If any don't match, this pack will not fit.
• Li-ion, NOT LiPo: Charges via USB at a fixed 7.4V profile. Do NOT use a LiPo balance charger on this pack.
• Package: 2× PCEONAMP 7.4V 3000mAh 2S Li-ion battery (SM-2P plug), 2× USB-A charging cable, 1× user manual.
Frequently Asked Questions
Is this battery compatible with my RC car?
Yes, if your vehicle uses a 7.4V (2S) battery with an SM-2P plug and the bay fits 70 × 38 × 18mm. Specifically fits WPL C24, MN D90, MN 90 RC crawlers, H101 RC car/truck/boat, and any 2S 7.4V toy RC with an SM-2P bay.
What does SM-2P mean?
SM-2P is a two-pin flat connector, smaller than SM-3P or SM-4P. It is NOT interchangeable with other SM-series plugs — confirm your vehicle’s original plug is SM-2P before ordering.
Can I charge this with a LiPo balance charger?
No. This is a Li-ion battery. It charges only via the included USB-A cable into any 5V USB port. A LiPo balance charger will not work and may damage the pack.
How long does it take to fully charge?
Approximately 2–3 hours with a 5V/1A source (typical phone adapter). Faster with a 5V/2A adapter. No separate charger needed — phone charger, laptop, power bank, or car USB all work.
Is this suitable for children’s RC vehicles?
Yes. This battery is designed for kids’ RC cars, crawlers, and boats (ages 6–14). It is a low-speed, toy-grade pack — NOT intended for high-performance racing or hobby-grade vehicles drawing 50A+.
How many charge cycles can I expect?
Under normal toy-grade use, expect 200–300 cycles before noticeable capacity fade. Store at 40–60% charge when not in use to maximize lifespan.
What comes in the box?
2× PCEONAMP 7.4V 3000mAh 2S Li-ion batteries (SM-2P plug), 2× USB-A charging cables, 1× user manual.
Is this safe?
Li-ion chemistry is inherently more stable than LiPo under normal use. However, do not open, cut, or modify the pack. If swelling, excessive heat, or physical damage is observed, discontinue use immediately.