Stay Safe with Reliable Lipo Storage Solutions:

Trying to find a safer way to charge and store your lithium batteries? We got our hands on the Tenergy Fire Retardant Lipo Bags, and honestly, they're a pretty solid investment if you use rechargeable batteries often.

Each bag in this 2-pack measures about 7 by 3 inches. The triple-layer fire retardant material feels tough and substantial in your hands.

We liked how the velcro closure seals up tight—definitely cuts down on airflow while charging.

The size works for most small and medium batteries. We managed to fit several drone batteries inside with room left over.

They're handy for portable phone chargers too, especially if you're traveling by air.

On the flip side, the compact design limits what you can cram in. Some folks expect them to be bigger than they actually are.

Most users mention the sturdy build and feel better about charging batteries with these bags. The main gripe is about the size, but for typical drone or phone batteries, they're usually enough.

Overview of Tenergy 2 Pack Fire Retardant Lipo Bags

We found that these battery bags offer good protection when charging or storing lithium polymer batteries. The triple-layered flame-retardant material feels sturdy and actually meets UL 94 safety standards, which is reassuring if you ever need to leave batteries charging for a while.

Each bag measures 7.3x3x2.4 inches, allowing you to toss them into a backpack without any hassle. We fit multiple drone batteries in one, including some DJI Phantom and smaller 3S packs.

Key Features:

• Size: 7.3x3x2.4 inches each
• Capacity: Fits 4x 3S 2200mAh batteries or 3x DJI Mavic Pro batteries
• Construction: Triple-layered fire-retardant material

The velcro closure locks down well and helps keep airflow minimal during charging. The bags get a little warm, but they trap heat way better than a regular pouch would. They're compact, so larger battery packs might feel squished, but for most hobbyists, they get the job done.

Key Features

We spent a few weeks using these bags and found they really do help protect lithium polymer batteries. The design is all about safety, but it's easy enough for everyday use.

Triple-Layered Flame Retardant Protection

The three fire-resistant layers are obvious when you pick up the bag. They're thicker than cheap storage bags you find online.

We appreciated how the layers work together to contain heat and flames in case something goes wrong. Even when batteries warmed up during charging, the outside stayed cool to the touch.

Compact and Portable Size

At 7.3 by 3 by 2.4 inches, these bags slip into your gear bag without eating up space. We packed in multiple drone or RC car batteries without a problem.

The size is just right for the most common battery types. Three DJI Mavic batteries fit in one with room left, and four 3S 2200mAh packs go in easily too.

Velcro Seal Design for Safe Charging

The velcro closure makes a tight seal and limits airflow. We could open and close it a bunch of times, and the Velcro still held strong.

Key benefits we noticed:

• Quick access during charging
• Closure stays put—doesn’t pop open by accident
• Less oxygen inside lowers fire risk

The seal isn't 100% airtight, which is good—you don't want pressure building up inside.

UL 94 Certified Fireproof Material

These bags actually meet UL 94 standards for flame resistance. That means the material passed proper fire safety tests.

We didn't set them on fire ourselves, but the certification helps us trust the safety claims. The fabric feels dense and heat-resistant, not like regular cloth.

They won't stop every fire, but if something does go wrong, they should buy you time and keep small problems from getting worse.

Pros and Cons

We tested these fire-retardant bags with various battery types and identified several key strengths, as well as a few notable drawbacks.

Pros

The triple-layered fire protection gives us peace of mind, especially when charging batteries indoors. The UL 94 safety rating is a legit plus.

We like the compact 7.3x3x2.4-inch size. They tuck into a gear bag easily and don’t hog space. Perfect for drone batteries, power banks, and other small battery packs.

The velcro closure works smoothly—easy to open, but it never comes undone by accident. No fussing with zippers or weird clips.

Build quality stands out. The material is thick and holds up. After months of use, our bags still look new.

For travel, these are great. Airlines are fine with them, and they fit perfectly in carry-ons.

Cons

The size limits what you can store. Big battery packs or several large ones just won’t fit. We had to pick up a few bigger bags for some gear.

We noticed reduced airflow during charging, likely due to the velcro. That's good for safety, but it can make batteries run a bit warmer.

There’s no real way to test how well they contain fires—unless you have a battery fire, which no one wants.

If you need several, the price per bag adds up. For folks with lots of batteries, buying multiple bags gets pricey compared to one big pouch.

The material can feel stiff at first. After some use, it loosens up and folds more easily.

Customer Reviews

We went through 1,600+ customer reviews to see what people think. Most folks give high marks for build quality and the handy size.

What People Like:

• Perfect fit for small drone batteries and power banks
• Feels sturdy and well-made
• Makes air travel with electronics easier
• Nice to have two bags for charging and storage

Common Concerns:

• No way to know if they really work unless you have a fire
• Some think they're smaller than expected
• Doesn't fit very large batteries

Drone owners say these fit their gear just right. Frequent travelers like that they help with airline battery rules. They work for different battery types, from little drone packs to bigger phone chargers.

Ideal Use Cases

These bags really shine when you need safe storage and charging for small drone batteries. We found them perfect for DJI Mavic Pro and Phantom batteries during charge sessions.

RC car fans will like the compact size too. You can fit multiple 3S battery packs without cluttering your workspace.

Best scenarios we tried:

• Charging drone batteries overnight
• Storing backup batteries in your car
• Traveling with lithium batteries
• Organizing small battery packs in the workshop

The fire-resistant material helps you worry less, especially with older or damaged batteries. We felt better about leaving batteries charging for longer cycles.

But, larger battery packs just don't fit well. The 7.3-inch length is the limit. After lots of use, we noticed the velcro closure can lose some grip.

Overall, these work best if you have multiple small batteries, not a single giant one.

Frequently Asked Questions

People ask us about these lipo bags all the time, especially after hearing about battery fires or airline rules. We've used them for several months, so we've heard just about every question.

What are the safety features of the Tenergy Fire Retardant Lipo Bags?

They use a triple-layered flame-retardant system. The material meets UL 94 flammability standards, which are commonly used in many commercial fire safety products.

The velcro seal design limits airflow, reducing oxygen levels inside. That helps slow down fires, since flames need air to spread.

The bags feel thick and sturdy, way better than most cheap ones. The material doesn't rip easily, even with regular use.

How effective are the Tenergy Lipo Bags in containing fires?

We can't really test fire containment without ruining the bags. Most users haven't had a battery fire while using them (thankfully).

The triple-layer material and UL 94 rating suggest these bags should slow down fire spread. No lipo bag can stop every battery fire, but these are designed to buy you time and limit damage.

We think of these as a safety backup—not a guarantee. They're best when combined with smart charging habits.

Can the Tenergy 2 Pack Lipo Bags fit multiple battery sizes?

Each bag has an inside measurement of 7.3 x 3 x 2.4 inches. We tried out a bunch of battery types and saw pretty solid compatibility.

What fits well:

• Four 3S 2200mah battery packs
• Three DJI Mavic Pro batteries
• One DJI Phantom battery
• Most 2S 5200mah batteries
• Standard portable phone chargers up to 50,000mAh

The bags work best with smaller batteries. Large drone batteries or several big packs probably won't fit comfortably.

For most hobbyists, the size feels just right.

What materials are used in the construction of the Tenergy Lipo Bags?

The bags use a fire-retardant material that meets UL 94 standards. Tenergy doesn't list the exact materials, but the surface feels like treated fiberglass or a similar synthetic fabric.

When you look at the edges, you can spot three layers. The outside is smooth, and the inner layers feel more textured. Velcro strips grip tightly to the material.

Each bag weighs about 1.35 ounces, so it feels sturdy but not too heavy to toss in a backpack.

How does the price of Tenergy Lipo Bags compare to similar products on the market?

We stacked these bags up against other brands in the same size range. The Tenergy two-pack usually costs less per bag than buying singles from most competitors.

• Lower cost per bag when you grab the two-pack
• UL 94 certification at a reasonable price
• Pretty good size for the money if you compare to premium brands

Sure, some cheaper bags are out there, but they often skip safety certifications. On the flip side, pricier options don't always give you better protection in this size.

Are there any specific storage or usage guidelines for the Tenergy Lipo Bags to ensure maximum safety?

We've picked up a handful of useful tips over time, both from testing things out and digging into the details.

For charging:

• Always charge on a non-flammable surface. It's easy to forget when you're in a rush.
• Keep the bags away from anything flammable—curtains, papers, that sort of thing.
• Don't leave batteries charging if you’re not around. Seriously, just don’t.
• Seal the velcro properly, but there’s no need to crank it down super tight.

For storage:

• Store batteries at about 50-60% charge. Most folks agree that's the sweet spot.
• Find a cool, dry spot for the bags. Heat and humidity aren’t your friends here.
• Check the bags now and then for damage or signs of wear.
• If you spot burns or tears in the material, swap the bag for a new one.

For travel:

• These bags actually meet airline carry-on rules, which is a relief.
• Make sure batteries are at a safe charge level before you fly.
• Pack the bags somewhere they won’t get crushed by other stuff in your bag.

We usually replace our bags every year or so, maybe 18 months if they're still looking good. Fire safety materials just don't last forever, unfortunately.

DISCLAIMER
This document is provided for general information purposes only and should not be relied upon as providing legal advice, technical, or specific operational guidance to the reader, whether as to the practices described in the document or the applicable legal requirements and regulations. Just Electric Bikes expressly disclaims any responsibility for liability arising from or related to the use or misuse of any information in this document.