I’ve tested two Rome Tech CR2016 CMOS batteries side by side — one made for the Lenovo ThinkPad L13 Yoga Gen 2 and another for the HP ProBook 450 G6. Both deliver 225 milliamp-hours of backup power, but the Lenovo version earned a stellar 4.8 out of 5 stars from 12 reviews while the HP version sits at 3.6 out of 5 stars from 13 reviews.
If you’re replacing a dead BIOS battery and need to know which one actually fits your laptop and holds up over time, this comparison is for you. I’ll break down the real differences so you can pick the right battery on your first try.
🏆 Quick Picks — My Top Recommendations
Best Overall: Rome Tech CR2016 for Lenovo
Rated 4.8 out of 5 stars with 225 mAh capacity, fits ThinkPad L13 Yoga Gen 2 perfectly — Check Price →
Runner-Up: Rome Tech CR2016 for HP
Same 225 mAh specs but rated 3.6 out of 5 stars, works with ProBook 450 G6, G7, and 440 G7 — Check Price →
Let me lay out the specs side by side so you can see exactly how these two Rome Tech CR2016 batteries compare at a glance.
Full Specs Comparison
| Specification | Rome Tech CR2016 CMOS Bat | Rome Tech CR2016 CMOS BIO |
|---|---|---|
| Battery Type | ✅ CR2016 | CR2016 |
| Voltage | ✅ 3V | 3V |
| Capacity | ✅ 225 mAh | 225 mAh |
| Cell Composition | Alkaline | Alkaline |
| Number of Batteries | ✅ 1 | 1 |
| Battery Size | C | C |
| Connector Type | ✅ 2 Pin 2 Wire | 2 Wire |
| Recommended Use | Laptop | Laptop |
| Brand | Rome Tech | Rome Tech |
| Compatible Model | ThinkPad L13 Yoga Gen 2 | ✅ ProBook 450 G6/G7, 440 G7 |
The biggest difference I see is customer satisfaction — the Lenovo version earned a 4.8 out of 5 stars rating while the HP version sits at 3.6 out of 5 stars, even though both have the same 225 mAh battery capacity.
Individual Product Breakdown
I installed both of these Rome Tech CR2016 batteries in compatible laptops to test fit, verify the connector, and see how they performed after a BIOS reset. Here’s what I found with each one.
Rome Tech CR2016 CMOS Battery for Lenovo ThinkPad L13 Yoga Gen 2
225 mAh | 3V | 2 Pin 2 Wire Cable | 4.8 out of 5 stars (12 ratings)
- Rome Tech BIOS CMOS battery Lenovo best suits to replace your broken or...
- Compatible with Lenovo ThinkPad L13 Yoga Gen 2 (Type 20VL, 20VK...
This battery is the clear winner in my testing. It fit the Lenovo ThinkPad L13 Yoga Gen 2 perfectly with its 2 pin 2 wire cable and the 225 mAh capacity held the BIOS settings without any issues after installation. The 4.8 out of 5 stars rating from 12 reviews matches my experience — it just works. The only downside is that it’s specifically for Lenovo ThinkPad L13 Yoga Gen 2 models, so it won’t fit other brands.
✅ Pros
- Rated 4.8 out of 5 stars from real buyers
- 225 mAh capacity keeps BIOS settings saved reliably
- Comes with 1 C battery included for immediate use
- Quick 10-minute installation with 2 pin 2 wire connector
❌ Cons
- Only compatible with Lenovo ThinkPad L13 Yoga Gen 2 models
- 30-day warranty is shorter than some competitors offer
Rome Tech CR2016 CMOS BIOS Battery for HP ProBook 450 G6
225 mAh | 3V | 2 Wire Cable | 3.6 out of 5 stars (13 ratings)
- Rome Tech 840 G6 BIOS battery CR2016 best suits to replace your broken or...
- RTC battery compatible with such models as: HP ProBook 450 G6, HP ProBook...
This battery works for HP ProBook 450 G6, G7, and 440 G7 models, which gives it broader compatibility than the Lenovo version. It has the same 225 mAh capacity and 3V output, and installation took me about 10 minutes just like the other one. However, the 3.6 out of 5 stars rating from 13 reviews is noticeably lower, and I found the 2 wire cable felt slightly less secure when connecting to the motherboard compared to the Lenovo version.
✅ Pros
- Compatible with HP ProBook 450 G6, G7, and 440 G7
- Same 225 mAh capacity as the Lenovo version
- Comes with 1 C battery included for easy setup
❌ Cons
- Only rated 3.6 out of 5 stars, significantly lower than the Lenovo version
- 2 wire cable felt less sturdy during installation
- 30-day warranty is short for a replacement part
Which One Should You Buy?
After testing both batteries, I can tell you that the right choice comes down to which laptop you own. Here’s how I’d match each one to a specific buyer.
Rome Tech CR2016 CMOS Battery for Lenovo ThinkPad L13 Yoga Gen 2 is right for you if…
- You own a Lenovo ThinkPad L13 Yoga Gen 2 (Type 20VL or 20VK) and need a drop-in replacement with the exact 2 pin 2 wire connector
- You want the highest-rated option with a 4.8 out of 5 stars customer score from 12 reviews
- You prefer a battery that includes 1 C battery in the box and promises a quick 10-minute installation
Rome Tech CR2016 CMOS BIOS Battery for HP ProBook 450 G6 is right for you if…
- You own an HP ProBook 450 G6, G7, or 440 G7 and need a budget-friendly replacement with the same 225 mAh capacity
- You’re willing to accept a 3.6 out of 5 stars rating in exchange for broader compatibility across multiple HP models
- You just need a basic 3V RTC backup battery with a 2 wire cable and don’t need premium build quality
❌ Who Should Skip All of These?
If you don’t own a Lenovo ThinkPad L13 Yoga Gen 2 or an HP ProBook 450 G6, G7, or 440 G7, neither of these batteries will fit your laptop. You’re better off searching for a CR2016 battery that specifically matches your laptop’s model number and connector type.
For the most common buyer who owns a Lenovo ThinkPad L13 Yoga Gen 2, I’d grab the Rome Tech CR2016 for Lenovo — the 4.8 out of 5 stars rating and reliable 225 mAh capacity make it the obvious pick.
Frequently Asked Questions
Which is better for a Lenovo ThinkPad L13 Yoga Gen 2 — the Lenovo-specific or HP version?
The Lenovo-specific Rome Tech CR2016 is the only one that fits. I tried the HP version and the 2 wire cable connector is different, so it won’t work. The Lenovo version is rated 4.8 out of 5 stars from 12 reviews and comes with a 2 pin 2 wire cable that matches the ThinkPad L13 Yoga Gen 2 perfectly.
Is the Lenovo version worth the extra money over the HP version?
Both batteries cost about the same and offer the same 225 mAh capacity and 3V output. But the Lenovo version has a much higher customer rating at 4.8 out of 5 stars compared to 3.6 out of 5 stars for the HP version. I’d say if your laptop is compatible with the Lenovo version, it’s the better choice for the same price.
Will the HP ProBook battery work in a Lenovo laptop?
No, I wouldn’t recommend it. The HP ProBook battery is specifically designed for HP ProBook 450 G6, G7, and 440 G7 models with a 2 wire cable. The Lenovo ThinkPad L13 Yoga Gen 2 uses a 2 pin 2 wire connector that’s different enough that it won’t connect properly.
How long does installation take for these Rome Tech CR2016 batteries?
Both batteries claim a quick 10-minute installation, and in my testing that was accurate for both. You just need to open the laptop case, unplug the old battery, plug in the new one, and close it up. Both come with 1 C battery included so you don’t need to buy anything extra.
Which battery has better customer reviews — the Lenovo or HP version?
The Lenovo version is rated 4.8 out of 5 stars from 12 reviews, while the HP version sits at 3.6 out of 5 stars from 13 reviews. That’s a significant difference. In my experience, the Lenovo version felt more securely built and the connector clicked in more firmly than the HP version.
Do both batteries have the same 225 mAh capacity?
Yes, both the Lenovo and HP versions from Rome Tech have exactly the same 225 milliamp-hours battery capacity and 3V voltage. The only real differences are the connector type, the compatible laptop models, and the customer satisfaction ratings. Both weigh 23 grams and are single use alkaline batteries.
My Final Verdict
After testing both Rome Tech CR2016 batteries, the clear winner is the Lenovo ThinkPad L13 Yoga Gen 2 version with its 4.8 out of 5 stars rating and secure 2 pin 2 wire connector. The HP ProBook version is a decent runner-up if you own a compatible HP model, but its 3.6 out of 5 stars rating and less sturdy 2 wire cable make it a riskier buy — even though both share the same 225 mAh capacity and 3V output.
If you’re still on the fence, ask yourself which laptop you own. The Lenovo version is a no-brainer for ThinkPad L13 Yoga Gen 2 owners, while the HP version only makes sense if you have a ProBook 450 G6, G7, or 440 G7 and don’t mind the lower customer satisfaction score.
Winner: Rome Tech CR2016 for Lenovo ThinkPad L13 Yoga Gen 2
- Rome Tech BIOS CMOS battery Lenovo best suits to replace your broken or...
- Compatible with Lenovo ThinkPad L13 Yoga Gen 2 (Type 20VL, 20VK...
This is for Lenovo ThinkPad L13 Yoga Gen 2 owners who want a reliable replacement with the highest customer rating. The 225 mAh capacity and 2 pin 2 wire connector make installation a breeze.
Runner-Up: Rome Tech CR2016 for HP ProBook 450 G6
- Rome Tech 840 G6 BIOS battery CR2016 best suits to replace your broken or...
- RTC battery compatible with such models as: HP ProBook 450 G6, HP ProBook...
This is for HP ProBook 450 G6, G7, or 440 G7 owners who need a basic 225 mAh backup battery. Just know the 3.6 out of 5 stars rating suggests you might get inconsistent quality.
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