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18.5V 4400mAh 5S LiPo Battery 35C XT60
• Specifications: 140 × 43 × 39mm / 5.5 × 1.71 × 1.55in; 506g / 17.84oz; 4400mAh; 18.5V (5S LiPo); 35C continuous discharge; XT60 plug.
• Designed for Mid-to-Large Scale RC Aircraft: This 5S 4400mAh LiPo battery delivers sustained 35C discharge for mid-to-large fixed-wing planes (700mm–1200mm wingspan), 450 and 550-class RC helicopters, medium gliders, and EDF jets. The 35C rating handles aggressive takeoff, hover, and full-throttle maneuvers with stable voltage from launch to landing.
• Compatible Models: 5S fixed-wing RC planes, 450/550-size RC helicopters, EDF jets, and medium gliders with an XT60 battery bay. Check your model's manual for recommended battery dimensions before ordering.
⚠️ Before Ordering — Verify 2 Things:
• 1) Your aircraft's battery bay fits 140 × 43 × 39mm (including XT60 plug clearance).
• 2) The battery plug is XT60 (two-pin with center tab). If either doesn't match, this pack will not fit.
• Package: 1× PCEONAMP 5S 4400mAh 18.5V 35C LiPo battery (XT60 plug), 1× storage box, 1× user manual.
Frequently Asked Questions
Is this battery compatible with my RC plane, helicopter, or glider?
Yes, if your aircraft uses a 5S (18.5V) battery with an XT60 plug and the battery bay fits 140 × 43 × 39mm. Specifically designed for mid-to-large fixed-wing RC planes (700mm–1200mm wingspan), 450 and 550-class RC helicopters, medium gliders, and EDF (ducted-fan) jet aircraft. Verify voltage, bay dimensions, and plug type before ordering.
What does XT60 mean? Is it the same as XT30, Deans T, IC3, or 4mm Bullet?
XT60 is a two-pin connector with a center tab (typically yellow). It is NOT interchangeable with XT30 (smaller), Deans T (T-shaped), IC3 (three-pin), 4mm Bullet (banana-style pins), or any other plug type. Check your aircraft’s original plug or manual to confirm it is XT60 before ordering.
What does 35C discharge mean? Can I push it harder for short bursts?
35C means this pack safely sustains approximately 154A continuous (4400mAh × 35C). Most quality LiPo packs tolerate short 3–5 second bursts at 1.5–2× the C rating (up to ~230–310A) for aggressive takeoff, hover, or full-throttle pull-ups. For sustained high-current use (550 heli at full throttle, EDF jets in cruise), we recommend staying at or below 35C to protect cycle life.
Can I charge this with a standard LiPo balance charger?
Yes. This is a genuine 5S LiPo battery. It charges via the JST-XH balance lead using a standard 5S LiPo balance charger. Recommended charge rate: 1C (4.4A) for daily use, up to 2C (8.8A) for quick turnaround. The 10AWG leads handle the current comfortably. Always charge on a fireproof surface and never leave unattended.
How long does it take to fully charge?
At 1C (4.4A), approximately 60 minutes. At 2C (8.8A), approximately 30 minutes. Use a charger rated for 5S (up to 21.0V). Do not use a Li-ion USB charger or a balance charger set to fewer than 5 cells.
How many charge cycles can I expect?
Under normal use with proper practices (avoid deep discharge below 16.5V, store at 40–60% charge), expect up to 350 cycles before noticeable capacity fade. Avoid storing fully charged or fully drained for extended periods.
Can I use this battery for F3A aerobatic competition?
It is voltage-compatible (5S/18.5V) for F3A, but 4400mAh may be on the lower side for competition where 2 packs are typically wired in series (5S + 5S = 10S / 33V) for extended capacity. For F3A, this pack works well as one of two series-connected packs, or as a training/spare cell. For a single-pack F3A setup, consider a higher-capacity 5S 5000mAh+ pack.
Is this suitable for 550+ helicopters or high-performance EDF jets?
It handles 450-class helicopters and mid-size EDF jets well. For sustained full-throttle operation on 550+ helicopters or large EDF jets drawing 180A+ continuously, consider stepping up to our 5S 5000mAh 35C or 6S 5500mAh 45C packs for higher sustained current.
What comes in the box?
1× PCEONAMP 5S 4400mAh 18.5V 35C LiPo battery (XT60 plug, JST-XH balance lead, 10AWG leads), 1× soft LiPo storage case, 1× user manual.