PENN Battle IV Spinning Reel Review
- Full metal body and sideplates with a forged, machined aluminum spool
- HT-100 carbon fiber drag with up to 15 lb max drag (4000 size)
- 6.2:1 gears, 37" per crank and 5+1 stainless bearings
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A full metal body saltwater spinning reel with a carbon fiber drag and a braid-ready spool. Here's how the 4000 size handles inshore, pier and light surf fishing.
Quick verdict
The PENN Battle IV is a full metal body spinning reel built for saltwater abuse, with CNC Gear Technology, an HT-100 carbon fiber drag and a braid-ready spool. In the 4000 size covered here, it delivers a 6.2:1 gear ratio, 15 lb of max drag and 5+1 stainless bearings. At 12.2 ounces it isn't the lightest option, but for inshore, pier and light surf fishing it is a tough, dependable workhorse.
Pros and cons
What we like
- Full metal body and sideplates resist flex under heavy load
- HT-100 carbon fiber drag delivers up to 15 lb of max drag
- Superline spool holds braided line securely without slipping
- Line Capacity Rings show how much line is left on the spool
- 5+1 stainless bearings with instant anti-reverse for solid hooksets
- Handle switches sides for left- or right-hand retrieve
What could be better
- 12.2 ounces is a lot of reel for all-day casting
- The 4000 size is more than you need for light freshwater finesse fishing
- Specs vary across sizes 1000 to 10000, so confirm the size you order
Key features, explained
Full metal body
PENN builds the body and sideplates from metal, and the spool is forged and machined aluminum. A rigid metal housing is the backbone of a saltwater reel: it resists flexing when a strong fish pulls hard, which helps keep the gears meshing properly and the reel feeling solid season after season. PENN says the Battle IV also adds its Hydro Armor sealing system to protect critical components in harsh conditions. The cost of all that metal is weight, at 12.2 ounces for the 4000 size.
CNC Gear Technology
PENN's CNC Gear Technology refers to precisely machined gears, and the 4000 size runs a 6.2:1 ratio, recovering 37 inches (94 cm) of line per turn of the handle. That is a quick, versatile pace for working jigs, swimbaits and topwater plugs, and for catching up to a fish that runs toward the boat. Five stainless steel ball bearings plus an instant anti-reverse bearing give smooth rotation and a handle that won't back up when you set the hook.
HT-100 carbon fiber drag
The drag is PENN's HT-100 system, a front drag built with carbon fiber washers. In general, carbon fiber washers handle heat well and stay smooth when a fish makes a long, fast run, which is exactly when a jerky drag pops line. The 4000 size reaches a max drag of 15 lb (6.8 kg), enough for most inshore species and light surf fishing when paired with suitable line. PENN pitches the system as one that handles large fish without wearing you down.
Braid-ready spool and line capacity
The spool is set up for braid: PENN calls it a superline spool, built so braided line attaches securely instead of spinning on the arbor. Line Capacity Rings on the spool help you see how much line remains. In the 4000 size, listed capacities are 270 yards of 8 lb, 220 yards of 10 lb or 165 yards of 12 lb monofilament, and 360 yards of 15 lb, 260 yards of 20 lb or 185 yards of 30 lb braid. That range covers most inshore setups with room to spare.
Where the 4000 size fits
PENN offers the Battle IV series in sizes from 1000 to 10000, and the 4000 sits in the middle. It pairs naturally with a 7- to 8-foot medium spinning rod for redfish, snook, seatrout, flounder, stripers and similar fish from a boat, pier or beach. The stainless steel handle can be set for left- or right-hand retrieve. If you mainly fish small freshwater lakes with light line, a smaller size will feel lighter and better balanced; for big offshore fish, step up to one of the larger sizes.
PENN Battle IV Spinning Reel specs
| Brand | PENN (Pure Fishing) |
|---|---|
| Model | Battle IV |
| Size | 4000 |
| Body | Full metal body and sideplates |
| Spool | Forged, machined aluminum with Line Capacity Rings |
| Gear ratio | 6.2:1 |
| Retrieve | 37" (94 cm) per handle turn |
| Bearings | 5 stainless ball bearings + 1 instant anti-reverse |
| Drag system | HT-100 carbon fiber front drag |
| Max drag | 15 lb (6.8 kg) |
| Mono capacity (yd/lb) | 270/8, 220/10, 165/12 |
| Braid capacity (yd/lb) | 360/15, 260/20, 185/30 |
| Weight | 12.2 oz |
| Handle | Stainless steel, left or right |
| Prices change often. See the live price: Check Price | |
Who should buy it?
Great for
- Inshore anglers who fish from boats, piers and jetties
- Saltwater anglers who want a metal-bodied reel that lasts
- Braid users who want a spool that grips line securely
Skip it if
- You want the lightest possible reel for all-day casting
- You fish small freshwater ponds with light line
- You chase big offshore fish that need a much larger reel
Frequently asked questions
What gear ratio does the PENN Battle IV 4000 have?
6.2:1, which recovers 37 inches (94 cm) of line with each turn of the handle, a quick, versatile pace for inshore lures.
How much drag does the Battle IV 4000 have?
Up to 15 lb (6.8 kg) from PENN's HT-100 front drag, which uses carbon fiber washers to stay smooth under long runs.
Can you use braided line on the PENN Battle IV?
Yes. The spool is a superline design made to hold braid securely. The 4000 size takes 360 yards of 15 lb, 260 yards of 20 lb or 185 yards of 30 lb braid.
Is the PENN Battle IV good for saltwater?
It is built for it. The full metal body, stainless bearings and PENN's Hydro Armor sealing are aimed at harsh saltwater conditions. Rinse it with fresh water after each trip to keep it running smoothly.
Is the Battle IV left- or right-handed?
Either. The handle can be switched to the left or right side of the reel, so it suits both left- and right-hand retrieve.
What sizes does the PENN Battle IV come in?
PENN makes the series in sizes from 1000 to 10000. The specs on this page are for the 4000 size, so check the capacity, drag and weight of any other size before you order.
Final verdict
The PENN Battle IV is built around what matters in saltwater: a full metal body, a forged aluminum spool, CNC Gear Technology and an HT-100 carbon fiber drag with 15 lb of stopping power in the 4000 size. It is heavier than many lighter-bodied reels and more than a pond angler needs. For inshore, pier and light surf fishing, though, it is a durable, braid-ready reel built to hold up to salt, sand and hard-pulling fish.
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