Product ReviewsFranklin Wireless R850 2450 mAh Li-Ion Mobile Hotspot Battery

These appear to be a good quality battery

Be sure to fully charge your new battery before using. Then use it until it's almost drained, then recharge and repeat 2-3 more times. This will give your new battery full capacity.
Mine is working great.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: cellularwholesa...

Short Life but Needed

Having purchased an R850 Hotspot, these batteries are essential to its operation. The average life expectancy of the batteries is about 3 months based on my personal experience. Therefore I highly recommend that one purchase several of these batteries and have them available to replace. You know the battery is reaching the end of its life when it starts to bulge at the middle and it stays hot. When the back of the hotspot pops off, it is time to change the battery. Be sure to use the original Franklin charger to recharge the batteries since other chargers may have a higher charge rate that will shorten the battery life.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: accessorymallon...

Great Replacement at an Even Better Price

This MiFi was a replacement for the one I originally received from Sprint. Unfortunately it got washed in the washer. This purchase was a replacement which was listed as new in the box. It was easy to activate and now I am again able to have a great hotspot Read full review...

Verified purchase:  Yes | Condition: new | Sold by: cellularstream

Not so great

It's a perfect fit, charges properly and promptly.I believe it is a good value for the price as well. I just received it though. UPDATE: It's been 7 months and as it is im looking for a replacement. These batteries get swollen badly fairly soon. They tend to get too hot with a regular charge. For $10 it was fair but if you're gonna pay $100 plus $10 ship for a battery that wont last a year, you might as well replace the modem for $80 or less.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: accessorymallon...

Good value for the money

Arrived sooner than expected. The battery fits and works as it should. Only been using it for a few weeks, good value for the money so far.

Verified purchase:  Yes | Condition: new | Sold by: beltronusa

Proper battery

The battery would be more useful but the charger is too worn to work correctly. I need something to connect correctly and the battery would work very well.

sprint wi fi

i recieved it faster than i thought i would very good price about 1/4 of what i paid for my last one i bought

Verified purchase:  Yes | Condition: pre-owned | Sold by: cellularstream

Excellent replacement battery.

This battery is a perfect replacement for the original battery used in Franklin R850. Charges quickly and holds a good charge.

Verified purchase:  Yes | Condition: new | Sold by: beltronusa

Good value

Fits perfect. Seems to power the Franklin hotspot for 8 hours between charges.

work good

excellent product

Verified purchase:  Yes | Condition: new | Sold by: beltronusa