Will this work emsi-flex mt+ tens/nmes unit. emsi battery goes positive, negative, positive, negative from left to right at top of terminals.

Sorry, the product model you provided is not compatible with this battery.

Do I remove the plastic covering before using??

If the plastic covering being referred to is the yellow-green plastic surrounding the battery, it does not need to remove. That plastic covering holds the individual batteries together. I think the batteries I received were in a zip lock bag. The battery contacts (metal circles on side with label and at bottom) were not covered by the yellow-green plastic and was able to make contact with those in the device. If the batteries you received were in a shrink wrap plastic oversleeve (? transparent) rather than a zip lock bag that covers the contacts, then probably would need to remove the oversleeve so that so the contacts are not covered.

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(5-Pack) 4.8V 600mAh Ni-MH Battery for Uniden BP-38, BP-39, BP-40 | Fits BT-1013, BT-537, FRS-008 and compatible GMR/GMRS two-way radios including GMR1038, GMRS680 and GMR2889.

Product ID: 408067562

Details

Number of Batteries
5 AAA
Brand
YUTSUJO
Battery Cell Composition
NiMH
Battery Capacity
700 Milliamp
Recommended Uses For Product
Radio
Voltage
4.8 Volts

⚡700mAh long-lasting capacity

🔋4.8V high-voltage power

🛡️Built-in multi-safety protection

AR$351396

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Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Stay powered, stay connected—never miss a moment!

VALUE PACKED BACKUP - Five batteries in one pack mean you’re always prepared, plus a 24-month warranty for peace of mind.
SAFETY YOU CAN TRUST - Advanced safeguards against overcharge, overheating, and short circuits protect both you and your device.
RELIABLE POWER ON DEMAND - Consistent 4.8V output fuels your Uniden & RadioShack radios without fail.
EXTENDED RUNTIME ZERO DOWNTIME - 700mAh capacity keeps your communication lines open for hours—no more mid-adventure blackouts.
CHARGE ANYTIME NO MEMORY EFFECT - Recharge whenever you want—battery capacity stays intact, perfect for daily hustle or emergency readiness.

The YUTSUJO 5-Pack 4.8V 700mAh Ni-MH rechargeable batteries are precision-engineered replacements for a broad range of Uniden and RadioShack two-way radios. Featuring robust Ni-MH chemistry and comprehensive safety protections, these batteries deliver reliable, long-lasting power with no memory effect. Ideal for professionals and outdoor enthusiasts alike, this pack ensures uninterrupted communication with five ready-to-go batteries backed by a 24-month warranty.

Specifications

Brand	YUTSUJO
Manufacturer	1
Model Name	BP 38
Package Dimensions	10.49 x 6.81 x 4.19 cm; 240 g
Batteries	5 AAA batteries required. (included)
Hardware Platform	android
Compatible Devices	GMR1038, GMR1048, GMR1058, GMR2889, GMR855, GMR680, GMRS380, GMRS680, TR6402, TR640-2
Voltage	4.8 Volts
Power Source	battery powered
Battery Description	nickel-metal hydride
Batteries Included	Yes
Batteries Required	Yes
Battery Capacity	700 Milliamp Hours
Battery cell composition	NiMH
Battery Power Rating	700 Milliamp Hours
Manufacturer	1
Country of Origin	USA
Item Weight	240 g

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AR$351396

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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