Tenergy T9688 Universal LCD Battery Charger + 8 Pack D Size 10000mAh NiMH Rechargeable Batteries
Quick take
This kit pairs an LCD-based NiMH battery charger with eight D-size 10,000mAh rechargeable batteries, aiming to cut repeat purchases of disposable D cells. It is a good match for devices that run on D batteries, but it is not designed for flat-top batteries and charging can take longer than some faster chargers, depending on how you use it.
Pros and cons
Pros
- Includes a universal LCD charger designed for NiMH rechargeable batteries.
- Backlit LCD provides clear battery status per battery slot.
- Batteries are rated at 10,000mAh D size and meant for everyday household use.
- Charger includes a built-in USB port (5V DC, 500mA) for powering portable devices.
Cons
- Not compatible with flat-top batteries (important if your devices use a different terminal shape).
- Charging can be slow, and you can typically charge only a limited number of batteries at a time.
- Works for NiMH rechargeable battery needs, not as a universal replacement charger for all battery types.
What buyers think
Buyer-review evidence points to a generally dependable charging experience and straightforward operation. Multiple shoppers report the set “works as described,” with batteries charging reliably and the LCD unit being easy to live with. Runtime expectations from buyers using the batteries in everyday, high-drain D-cell devices (like LED lanterns and similar gear) are described as favorable after the batteries are new, though some buyers also note the process can take longer than they expected and that charging multiple batteries at once limits throughput. Overall sentiment centers on value and convenience for ongoing D-cell usage rather than fast turnaround.
How this charger and battery set fits real life
The Tenergy T9688 kit is built for people who regularly rely on D batteries in household and off-grid gear. If you use D cells in LED flashlights, LED candles, emergency lanterns, portable radios, cassette recorders, solar lights, baby equipment, or similar devices, this is the kind of setup that can reduce repeat spending on disposables and help you recharge what you already use.
Key features that matter when you are comparing sets
LCD status screen for battery-by-battery visibility
The charger uses a backlit LCD display to show battery status for each individual battery. For buyers juggling multiple rechargeable cells, that per-slot feedback helps you avoid guesswork about whether the current batch is still charging or finished.
Charging behavior and capacity expectations
These are 10,000mAh D-size NiMH rechargeable batteries. That capacity figure is intended to support longer run times, but actual hours depend heavily on your device’s current draw, how fully the batteries are charged, and how often you cycle them. Reviews reflect this as a “working well over time” type of purchase, rather than a fast-charge solution.
Compatibility note: not for flat-top batteries
If you plan to charge flat-top D cells, this kit is not compatible. Before buying, check your existing batteries or replacements for the terminal style so you do not end up with batteries that cannot be charged in the unit.
USB output for small power needs
The built-in USB port (5V DC, 500mA) is a convenience feature if you also want a simple way to power certain portable devices while the charger is already set up.
Pros and cons recap (quick decision help)
Good fit if you want
- A charger-battery combo designed specifically around NiMH D-size rechargeable use.
- An LCD charger that provides clear status visibility instead of a “light turns green” approach.
- A setup for recurring household and gear use where saving money on disposables is a priority.
Consider other options if
- You need faster turnaround, especially if you often recharge many D batteries at once.
- Your batteries or intended replacements are flat-top style and you need a charger that supports that terminal type.
- You are charging a wider mix of battery chemistries or sizes beyond what the charger is intended to handle.
Verdict
The Tenergy T9688 charger plus eight D-size NiMH 10,000mAh batteries is a solid choice for shoppers who burn through D cells and want an LCD-monitored rechargeable setup for everyday devices. The biggest practical drawback is speed and batch size, but for steady, routine recharging, the convenience and status visibility highlighted by buyers make this kit easier to use consistently.
Price and availability
Check the current price and stock status on the retailer page, since rechargeable kits can vary in cost depending on bundle pricing and availability.
FAQ
Is the Tenergy T9688 charger compatible with flat-top D batteries?
No. The charger is not compatible with flat-top batteries, so you will want to verify your battery terminal style before purchase.
How long does it take to charge batteries with this kit?
The battery charge time listed for the charger is about 3 hours. If you run discharge and recharge modes or charge multiple batteries in the same session, total time can feel longer in day-to-day use.
What devices are these D-size NiMH batteries meant for?
These D batteries are intended for everyday household and portable devices that use D-cell power, such as LED flashlights, lanterns/candles, emergency lighting, portable radios, and similar electronics.
Does the charger have a USB port?
Yes. The charger includes a built-in USB port with an output of 5V DC at 500mA.
Is this a good buy for people who want to replace disposable D batteries?
It can be a good fit if you regularly use D batteries and you are comfortable recharging NiMH cells routinely, especially if you want LCD status visibility while the charger is running.
Specifications
| Product Title | Tenergy T9688 Universal LCD Battery Charger + 8 Pack D Size 10000mAh NiMH Rechargeable Batteries UL Certified |
|---|---|
| Category | Electronics > Household Batteries, Chargers & Accessories > Battery & Charger Sets |
| Brand | Tenergy |
| Manufacturer | Tenergy |
| Model Number | N5MJIWJ |
| Color | Clear |
| Item Weight | 0.36 Pounds |
| Product Dimensions | 6"D x 10"W x 6"H |
| Output Voltage | 5 Volts |
| Input Voltage | 12 Volts (DC) |
| Battery Charge Time | 3 Hours |
| Current Rating | 0.5 Amps |
| Amperage | 0.5 Amps |
| Item Dimensions D x W x H | 6"D x 10"W x 6"H |
| Specification Met | UL |
| Mfr Part Number | N5MJIWJ |
| UPC | 844949030052 |
| Unit Count | 1.00 Count |
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