There's a quiet fact every ebike rider has come face to face with. Your batteries go dead. Your battery may have aged a couple of years and holds less of a charge. Or it may have simply stopped working and left you with a perfectly good bike and a useless hunk of metal (a.k.a. a pack). That's essentially the scenario the LNKJDFGW 36V 12Ah battery is designed for. It's a no-frills, budget-priced replacement for the majority of 36V electric bikes, scooters and even wheelchairs. If you're looking for a low-cost way to revive an old ride, grab the LNKJDFGW 36V 12Ah ebike battery here on Amazon, and then continue reading as I dive deeper into what you'll really be getting.
Specs and Build Quality
First off, let's discuss specifications. This is a 36V 12Ah pack. Multiply these together and you get 432Wh. The watt-hours is the only number that really counts, not the marketing hype. With this amount of watt-hours, most commuters should be able to complete a 15 to 25-mile trip based on their level of pedaling, their body weight and how hard the motor needs to work to keep them moving. This isn't the largest pack available, however for everyday use to commute to work or for cruising around town it works.
Dimensions are extremely compact at 7.87 x 3.54 x 2.71 inches. It is a very thin little block that easily fits into a frame bag or strapped to a rack. In addition to being relatively compact, the battery is also lightweight for its size, which is another of the benefits of choosing lithium versus older lead acid technology. When lifting the bike or carrying it up stairs, you will notice the difference.
You can view the size and case details of the listing if you'd like a closer look before deciding whether to purchase.
In terms of build quality, this is typically where budget pack manufacturers cut costs. However, LNKJDFGW made an effort to avoid cutting corners. The case is a hard-plastic shell that provides protection against water, shocks and wear. That is the correct approach for a battery that will endure rain, potholes, etc. Don't forget that waterproof and sealed are not the same thing, so treat the connectors with care during heavy weather conditions.
Also in the box is a 2A smart charger. That is smaller than many bikes ship with, so expect to wait approximately four to six hours to get a full charge. Charge it at night while sleeping or during the workday.
BMS Safety and Features
That is where an inexpensive battery could either be a great deal or an accident waiting to happen. The LNKJDFGW does include a BMS (battery management system) that provides protection against overcharge, over-discharge, short-circuit and heat damage. That is everything you would want from a lithium pack.
In addition to the features provided by the BMS, the included charger also includes its own protective measures. They both provide protection against overcharge, over-discharge, short-circuits and thermal damage. Therefore, you now have two levels of protection instead of one. For an inexpensive battery such as this one, having that type of redundancy is reassuring.
Lifespan of this battery is estimated at greater than 1000 charge/discharge cycles. As with any battery, actual lifespan will generally be lower than specified due to normal usage patterns. Even reaching half that mark of 500 cycles will translate into three or more years of daily riding before significant degradation occurs. That is plenty of mileage for the money.
One additional detail worth mentioning regarding connectivity is the connector style. The pack connects via a standard XT60 connector, which is one of the most commonly utilized connectors among ebikes today. If your bike employs an alternative connection style, the seller lists various adapter options allowing you to connect without needing to wire anything differently yourself.
What Amazon Reviewers Are Saying
I want to be completely transparent here, the review count for this battery is very low. Currently only one reviewer has reviewed this product on Amazon. One! That represents an incredibly small sampling pool, therefore there is little to no evidence supporting long-term performance or durability after multiple thousand miles of cycling. Be cautious when evaluating reviews regarding any products including this one, consider opinions as speculative until proven otherwise.
What we can determine is derived from specs and documentation provided by the manufacturer, thus I relied heavily upon those items throughout this evaluation. Although there is only one reviewer providing input regarding this product, giving it five-star ratings, that information is nearly irrelevant in isolation. More telling is what appears to be well-documented within the listing itself, such as:
- A standard XT60 connector
- An estimate of exceeding 1000 cycle duration
- A smart charger included
- A relatively compact case that fits in numerous locations
All those features are documented and verifiable.
Included smart charger is arguably the best feature offered at this price-point. Many budget packs arrive with a "dumb" wall-wart or in extreme cases no charger at all. Obtaining a fully functional smart charger with built-in protection circuits eliminates searching and purchasing elsewhere for the charger. That significantly enhances the overall value.
Who Is This Battery For?
So far as I am concerned, this battery is perfect for a certain kind of cyclist, so I shall admit whom this battery fits best. Ideal for someone who already owns a 36V bike/scooter/wheelchair and their original battery has ceased functioning altogether, meaning you know your system, you know the connector configuration, you merely require a direct replacement rather than an upgrade. If that describes you, purchase your replacement pack here on Amazon.
Additionally suitable for the DIYer/tinkerer wishing to acquire an economical spare pack to swap in or out, or someone wanting to construct a simple 36V setup on the cheap. The XT60 connector employed by this battery is also very user-friendly for beginners, and given its compact design, it should be fairly simple to locate space to mount it somewhere on your bike.
Not likely the ideal candidate for anyone requiring extensive range capabilities. While 432Wh is sufficient for daily commutes, it will not provide long-distance tour support. Not recommended for anyone whose motor requires excessive power output beyond 750 watts, as this pack was specifically rated for motors drawing between 250 and 750 watts. So long as you remain within those limits, it should serve you quite well. If you are weighing it against other packs, our ebike battery comparison table lays out the differences side by side.
For everyone else falling squarely in-between, this seems to be a reasonable purchase for an economical solution for a tired 36V ride. Known quantities for this pack include a real 432Wh pack, a genuine smart charger, and a one-year warranty backed by customer support that will respond 24/7. That latter item truly matters, especially considering at this price, the manufacturer is prepared to back up the pack with warranty coverage and support.
Frequently Asked Questions
How many miles will I achieve from each charge of the LNKJDFGW 36V 12Ah battery?
Approximately fifteen to twenty-five miles per charge, depending on your motor's horsepower requirements, how aggressively you pedal, your weight, and the terrain you encounter. Flat roads and lighter pedal assistance will extend it further, whereas hills and throttle-only operation will reduce it.
Will this battery fit my ebike?
If your ebike utilizes a 36V electrical system with an engine producing between 250 and 750 Watts, it is highly probable that this battery will fit your bike. Utilizing a standard XT60 connector offers compatibility for many ebikes right out-of-the-box, additionally optional adapters enable connections utilizing other connector configurations as necessary. Measure your existing battery mounting location relative to the new LNKJDFGW 36V 12Ah's dimensions (7.87 x 3.54 x 2.71 inches), prior to placing an order.
How long will it take to recharge?
Using the supplied 2A smart charger, expect to recharge your battery completely within four to six hours. The slow recharge rate is acceptable, as the gentler recharge rates will tend to be easier on your cells, and the smart charger provides additional protection functionality eliminating worries about leaving it connected unattended.
Is this battery safe?
Yes. The LNKJDFGW incorporates built-in BMS (battery management system) protection from overheating, overcharging, over-discharging and short-circuit events, protecting both your battery and surrounding components from possible damage. Furthermore, the supplied charger provides identical protection functionalities, creating redundant safeguarding in tandem.
What warranty is provided?
LNKJDFGW offers one year warranty, along with 24 hour customer service, on this battery. Having that level of security netting available at such an affordable price point provides added assurance.
How long will this battery last?
Specifications claim that it will exceed 1000 charge/discharge cycles. Actual lifespan will be slightly lower due to typical usage patterns, nonetheless even reaching halfway that mark (about 500 cycles) equates to three or more years of daily riding prior to noticeable degradation begins to occur. Plenty of miles available.
When it comes down to it, the LNKJDFGW 36V 12Ah is just a basic and economical replacement for anyone owning a tired 36V ride. It won't blow you away with impressive range or high-end features, however it offers a legitimate 432Wh pack, a smart charger, and a waterproof hard case that should fit your budget. If that sounds like your bike, take a peek at its current price on Amazon, or possibly provide the quick fix you've been seeking. Once you are ready to evaluate other alternatives, visit our comparison table to view side-by-side comparisons regarding various packs, or swing by the blog for more battery breakdowns and ride-tested roundups.